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Co-Ownership Agreement

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Buy-Sell Agreement Between Co-Owners of Real Property

Agreement made on the day of , 20 , between of , referred to herein as , and , of , referred to herein as .

Whereas, and (sometimes referred to herein jointly as Co-Owners and Individually as Co-Owner) own real property as tenants-in-common at ; and

Whereas, and desire (1) to provide for the sale by a Co-Owner during his or her lifetime, or by a deceased Co-Owner’s estate, with the purchase of such interest by the remaining Co-Owner to be at a price fairly established; and (2) to provide all or a substantial part of the funds for the purchase in the case of a sale by a deceased Co-Owner’s estate.

Now, therefore, for and in consideration of the mutual covenants contained in this agreement, and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties agree as follows:

1. and own the following described real property (the Property) as equal tenants-in-common:

2. While this agreement is in effect, neither Co-Owner shall have the right to assign, encumber or dispose of his/her interest in the Property except as provided herein.

3. Upon the death of a Co-Owner, his/her estate shall sell, and the surviving Co-Owner shall purchase, the deceased Co-Owner’s entire interest in the Property for the price and pursuant to the other terms provided herein.

4. If either Co-Owner desires to sell or otherwise dispose of any part of his/her interest in the Property during his/her lifetime, he/she shall give the other Co-Owner (herein referred to as Remaining Co-Owner) written notice of his/her intention. If there is a prospective transferee other than the Remaining Co-Owner, such notice shall state the name and address of such transferee and the terms and conditions of the proposed transfer.

5. Upon receipt of such written notice referred to in Paragraph 4, the Remaining Co-Owner shall have the right to purchase all of the interest in the Property offered for sale or transfer. The purchase price shall be the amount established in Paragraphs 8 and 9 below; provided, however, that if a lower price was stated in the notice to the Remaining Co-Owner, the Remaining Co-Owner shall have the right to purchase said interest in the Property at such lower price.

6. The Remaining Co-Owner shall pay for the interest of the selling Co-Owner in cash (or by cash and a Promissory Note as described in Paragraph 7) on the date of sale, and thereafter the selling Co-Owner shall not participate in the future profits of the Property.

7. The Remaining Co-Owner shall have the right to pay for the interest he/she purchases upon the following terms: % of the purchase price in cash upon the date of exercise of the option to purchase with the balance to be evidenced by a Promissory Note containing the following provisions:

A. The unpaid balance of said Note shall bear interest at the rate of % per annum.

B. Principal and interest shall be due and payable at the address of selling Co-Owner in consecutive equal monthly installments on the first day of each month beginning on the first day of the month following the exercise of this option by Remaining Co-Owner. Each subsequent monthly installment shall be due and payable on the first day of each succeeding month thereafter until the entire indebtedness evidenced by this Note is fully paid.

C. In the event default is made in the payment of this Note at maturity, or of any installment thereof, whether maturing by expiration of time, by default as herein provided, and same is placed in the hands of an attorney for collection, then an additional amount of Fifteen Percent (15%) on the principal and interest of this Note shall be added to the same as a collection fee, and the failure to pay any installment when due shall mature the entire indebtedness at the option of the holder of this Note.

D. The Remaining Co-Owner may prepay the principal amount outstanding in whole or in part without penalty. The holder of this Note may require that any partial prepayments (i) be on the date monthly installments are due, and (ii) be in the amount of that part of one or more monthly installments which would be applicable to principal. Any partial prepayment shall be applied against the principal amount outstanding and shall not postpone the due date of any subsequent monthly installments or change the amount of such installments, unless the holder of this Note shall otherwise agree in writing.

8. and agree that at this time the fair market value of each Co-Owner’s interest in the Property is $ , and the purchase price to be paid by the Remaining Co-Owner pursuant to this Agreement shall be % of that amount. This value shall remain effective for the purposes herein until there is a re-determination of the value as provided in Paragraph 9.

9. At the end of each calendar year, the Co-Owners shall re-determine this value and shall indicate the new values by entries in Schedule A attached hereto. Each new set of values entered in Schedule A shall be signed by both Co-Owners, and the last value entered opposite in Schedule A shall be controlling for the purposes of this Agreement. In determining the value of a deceased Co-Owner’s interest in the Property after his/her death, the excess of the death claim proceeds over the cash values of the insurance policies on his/her life which are subject to this Agreement at the time of his/her death shall not be taken into account.

10. To assure that all or a substantial part of the purchase price of a deceased Co-Owner’s interest will be available in cash upon his/her death, the Co-Owners have purchased key man life insurance on the lives of each Co-Owner from the in the amount of $ with the other Co-Owner as the beneficiary.

11. The Procedure upon the death of a Co-Owner shall be as follows:

A. The surviving Co-Owner, as beneficiary, shall promptly file a claim to collect in cash the one-sum death proceeds of the policies on the deceased Co-Owner’s life. Upon the collection of such proceeds and the qualification of a personal representative for the deceased Co-Owner, the surviving Co-Owner shall pay over to the personal representative an amount equal to the full proceeds collected, in part or in full payment for the deceased Co-Owner’s interest in the Property.

B. If the one-sum death proceeds of the policy on the deceased Co-Owner’s life is less than the total purchase price for his/her interest as provided herein, the surviving Co-Owner shall either pay the balance forthwith in cash, or in lieu of such cash payment shall execute and deliver to the personal representative of the deceased Co-Owner’s estate a Promissory Note containing the following provisions:

1. The unpaid balance of said Note shall bear interest at the rate of % per annum.

2. Principal and interest shall be due and payable, at such address as the personal representative of the deceased Co-Owner shall designate to the surviving Co-Owner in writing, in consecutive equal monthly installments on the first day of each month beginning on the first day of the month following the payment of the insurance proceeds to the personal representative of the deceased Co-Owner’s estate. Each subsequent monthly installment shall be due and payable on the first day of each succeeding month thereafter until the entire indebtedness evidenced by this Note is fully paid.

3. In the event default is made in the payment of this Note at maturity, or of any installment thereof, whether maturing by expiration of time, by default as herein provided, and same is placed in the hands of an attorney for collection, then an additional amount of Fifteen Percent (15%) on the principal and interest of this Note shall be added to the same as a collection fee, and the failure to pay any installment when due shall mature the entire indebtedness at the option of the holder of this Note.

4. The surviving Co-Owner may prepay the principal amount outstanding in whole or in part without penalty. The holder of this Note may require that any partial prepayments (a) be on the date monthly installments are due, and (b) be in the amount of that part of one or more monthly installments which would be applicable to principal. Any partial prepayment shall be applied against the principal amount outstanding and shall not postpone the due date of any subsequent monthly installments or change the amount of such installments, unless the holder of this Note shall otherwise agree in writing.

C. The personal representative of the deceased Co-Owner shall promptly execute (and shall cause any other party or parties whose signatures may be necessary to transfer complete title to the deceased Co-Owner’s interest to execute) all instruments necessary to effectuate the transfer of the deceased Co-Owner’s interest in and to the Property, as of the date of the deceased Co-Owner’s death. and, concurrently with receipt of the full purchase price for the deceased Co-Owner’s interest (either in cash, or in cash and note, as provided above), shall deliver all instruments necessary to effectuate the transfer of the deceased Co-Owner’s interest in and to the Property, as of the date of the deceased Co-Owner’s death. Transfer of such interest shall be made free and clear of all taxes, debts, claims, or other encumbrances whatsoever, except as allowed in Subparagraph D below.

D. Concurrently with the transfer to the Co-Owner of the deceased Co-Owner's interest, the surviving Co-Owner shall execute and deliver to the personal representative of the deceased Co-Owner, a warranty deed with no exceptions as to title other than recorded building restrictions, restrictive covenants, easements, rights-of-way, zoning ordinances, and mineral reservations applicable to Property.

12. Any notice provided for under this Agreement shall be deemed duly given if delivered or mailed by certified mail to the party entitled to receive such notice at the address of the Co-Owners set forth above.

13. Notwithstanding the foregoing, and anything herein to the contrary notwithstanding, any dispute under this agreement shall be required to be resolved by binding arbitration of the parties hereto. If the parties cannot agree on an arbitrator, each party shall select one arbitrator and both arbitrators shall then select a third. The third arbitrator so selected shall arbitrate said dispute. The arbitration shall be governed by the rules of the American Arbitration Association then in force and effect.

14. This Agreement shall be construed according to the law of the State of .

WITNESS our signatures as of the day and date first above stated.

(Co-Owner)

(Co-Owner)

(Acknowledgment may vary by state)

State of

County of

Personally appeared before me, the undersigned authority in and for the said County and State, on this (date), within my jurisdiction, the within-named and , proven to me on the basis of satisfactory evidence to be the persons whose names are subscribed to the above instrument, and who acknowledged that they executed the above and foregoing instrument for the purposes therein stated, being duly authorized so to do.

Witness my hand and official seal on this .

NOTARY PUBLIC

My Commission Expires:

Seal

Enter text✕

What a Co-Ownership Agreement Is and When It Applies

A Co-Ownership Agreement is a written contract that defines ownership shares, responsibilities, and decision-making among two or more parties who jointly hold property or assets. Typical uses include residential property ownership, investment real estate, jointly owned businesses, or shared equipment. The agreement clarifies contributions, expense allocation, management duties, dispute resolution, transfer restrictions, sale procedures, and buyout mechanisms. A clear Co-Ownership Agreement reduces uncertainty, sets expectations, and creates an enforceable record of rights and obligations that courts and tax authorities can reference when interpreting parties’ intentions.

Why a Co-Ownership Agreement Matters

Establishing a Co-Ownership Agreement reduces later disputes by documenting each party’s financial contributions, decision rights, and exit procedures. It helps allocate tax responsibilities, protects minority interests, and creates a contractual framework enforceable under state contract law and applicable e-signature statutes.

Why a Co-Ownership Agreement Matters

Who Typically Uses a Co-Ownership Agreement

Typical users include co-owners, property managers, attorneys, and accountants who need a documented shared-ownership arrangement.

  • Individual co-owners splitting title and expenses for residential or investment property.
  • Business partners sharing ownership of commercial property or equipment assets.
  • Trustees, estate administrators, or lenders reviewing shared-interest terms for legal clarity.

When completed correctly, the agreement supports dispute resolution, tax reporting, and enforceable transfer restrictions among co-owners.

Representative Co-Owner Profiles

Individual Owners

Co-owners who each hold a defined percentage interest in property. Often individuals purchasing a home with a partner or friends sharing investment real estate; they need clear rules for contributions, maintenance responsibilities, decision-making authority, and buyout pricing to avoid disputes.

Business Co-Owners

Partners, LLC members, or investors owning business assets jointly. They rely on agreements to allocate profit/loss, manage voting thresholds, assign management duties, and include transfer restrictions or right-of-first-refusal provisions to preserve business continuity and capital structure.

Essential Information to Include

Party Names: Full legal names as on ID
Ownership Shares: Percentage, fraction, or unit counts
Property Description: Legal description or street address
Contributions: Cash, property, and expense allocations
Decision Rules: Voting thresholds and tie-breakers
Signature Dates: MM/DD/YYYY format for each signature

Key Risks and Potential Consequences

Tax Misallocation: Incorrect reporting triggers IRS penalties
Title Disputes: Unclear ownership invites litigation
Recording Problems: Unrecorded transfers harm priority
Invalid Signatures: Missing consent may void terms
Notary Errors: Improper notarization affects enforceability
Contract Ambiguity: Vague terms lead to costly disputes

Common Mistakes to Avoid

  • Failing to specify exact ownership percentages or units, which causes confusion when allocating income, expenses, or sale proceeds and can lead to disagreements.
  • Omitting procedures for resolving disputes, such as mediation or arbitration clauses, increases litigation risk and lengthens resolution time and costs.
  • Not recording amendments or changes in ownership with county recorder offices can impair title clarity and affect third-party lenders or buyers.
  • Using ambiguous buyout formulas or open-ended valuation methods leads to disputes; specify appraisal processes, dates, and acceptable valuers to reduce contention.

Step-by-Step: Completing a Co-Ownership Agreement

Follow these steps to complete a Co-Ownership Agreement accurately and create an enforceable record of rights and obligations.

  • 01
    Identify Parties: List full legal names and contact details
  • 02
    Define Shares: Specify percentage ownership and contribution amounts
  • 03
    Allocate Duties: Describe maintenance, management, and expense responsibilities
  • 04
    Sign & Date: All parties sign; include signature dates

Where to File, Send, and Store the Agreement

This routing guide explains where and how to file, serve, and store your signed Co-Ownership Agreement for legal effect.

  • Internal Copies: Provide each co-owner with a fully executed copy
  • Recording: Record with county recorder for real property transfers
  • Lender Notices: Notify mortgagee when ownership structure changes
  • Secure Storage: Retain original in secure, access-controlled repository

How to Configure an Online Signing Workflow

Configure an online Co-Ownership Agreement workflow to control signer order, authentication, and automated recordkeeping system.

Field Configuration
Signer Order Specify sequential or parallel signing
Authentication Email, SMS code, or ID verification
Conditional Fields Show fields based on prior answers
Retention Set document retention and export settings

Technical Requirements for Digital Execution

Digital signing requires compatible file formats, secure transport, and signer authentication to ensure enforceability across platforms.

  • Formats: PDF, DOCX support
  • Authentication: Email, SMS, KBA
  • Integrations: CRM, storage, and ERP links

Core Sections Every Co-Ownership Agreement Should Include

A professional Co-Ownership Agreement contains essential sections that define ownership, governance, financial obligations, transfer rules, dispute resolution, and signing authorities.

Ownership

State each co-owner’s percentage interest, capital contributions, and the method for recalculating shares after additional contributions or distributions, including treatment of in-kind contributions and liability for existing encumbrances.

Management

Describe day-to-day management roles, delegated authority, voting thresholds for major decisions, and procedures for appointing managers or agents, including budget approval workflows, expense authorization limits, and reporting requirements.

Financials

Outline contribution schedules, expense sharing, accounting methods, distributions, tax allocations, records access, and required supporting documentation for audits, including bank account setup and timing of reconciliations.

Transfers

Set transfer limitations, right-of-first-refusal, consent thresholds, valuation process, permitted transferee categories, and required notice periods and documentation for transfers, including escrow handling and closing mechanics.

Dispute Resolution

Specify mediation and arbitration procedures, venue selection, applicable law, interim relief options, and procedural rules including arbitrator selection, cost allocation, and binding award enforcement mechanics.

Signatures

Identify authorized signatories, signature blocks for each party, electronic signing permissions, witness or notary requirements, date fields for execution, and instructions for remote online notarization where permitted.

Key Dates and Periods to Track

Key dates for Co-Ownership Agreements span effective execution, recording, tax reporting, and periodic reviews and maintenance tasks.

Effective Date:

Agreement effective on the signed date unless stated otherwise

Recording Window:

Record transfers promptly; county timing varies

Tax Reporting:

Provide W-9 on request; report income on tax return April 15

Annual Review:

Annual financial reconciliation and owner reports recommended

Amendment Notice:

Set notice period for amendments and required approvals

eSignature Vendor Comparison for Co-Ownership Workflows

Compare common eSignature vendors on price, trial availability, bulk send, audit trail, HIPAA support, and envelope caps relevant to Co-Ownership Agreement workflows.

signNow DocuSign Adobe Sign PandaDoc HelloSign
Starting Price $8/user/mo $15/user/mo $14/user/mo $19/user/mo $15/user/mo
Free Trial 7-day free trial, no credit card required Limited trial Limited trial Yes, limited Yes, limited
Bulk Send Yes Yes Yes Yes No
Audit Trail Yes Yes Yes Yes Yes
HIPAA Compliant Yes Yes Yes No No

Real-World Examples: Digital Execution in Practice

Real customers describe how structured agreements and digital execution reduce delays and improve compliance in shared-ownership transactions.

Optica Ventures — Brian Fitzgibbons

Optica Ventures used a digital signing workflow to finalize co-ownership documents across multiple partners and time zones.

  • Processing became consistently faster for external stakeholders.
  • According to COO Brian Fitzgibbons, the team completed signature cycles without in-person meetings, preserved audit trails for each execution, and reduced turnaround time while maintaining clear records for tax and title purposes.

Martin Properties — Tim Martin

Martin Properties implemented e-signatures for rental and co-ownership arrangements to eliminate in-person execution and reduce administrative backlog.

  • Signatures remained compliant across devices and formats.
  • Tim Martin reports streamlined execution, consistent compliance, and the ability to close transactions remotely while preserving notarization and recording workflows where required.

Frequently Asked Questions and Troubleshooting

Answers to common questions about creating, executing, and enforcing Co-Ownership Agreements, with practical troubleshooting for typical issues.


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