What should an agreement between co-owners of a rental property cover?
A co-owner agreement should answer seven questions in writing before any money moves: who does what, who decides what, how extra cash is called for, how profit and losses are split, what happens when you disagree, what happens when one owner wants out, and what happens if one dies or cannot pay. Each unanswered question is where a dispute later starts.
Roles and decisions
Name one person who runs the day-to-day: collects rent, answers tenants, hires vendors. Say what they can do alone and what needs everyone. Typical splits: routine decisions up to a stated amount alone; a new loan, a sale, a major renovation, a rent change above a set percent or a lease longer than a year by agreement of all or a stated majority.
Write down who is paid for the work. If one partner does the management and the other contributes cash, decide whether the manager earns a fee, a larger share of profit, or nothing, and write the number. The silent assumption is where the first argument happens.
Money in: contributions and capital calls
List what each owner put in at the start, as cash or property, so the starting capital is clear. Then decide what happens when the property needs more money: a roof, a vacancy, a rate reset. Common answers are a capital call split by ownership share with a deadline, a loan from the partners who can pay, or a dilution of a partner who cannot.
Example a made-up two-owner fourplex, 60 percent and 40 percent. A $20,000 roof needs funding. By ownership share, the 60 percent owner contributes $12,000 and the 40 percent owner $8,000. If the 40 percent owner cannot pay, the agreement might let the other owner pay the $8,000 as a loan at a stated rate, repaid before any distribution, instead of changing ownership.
Pick one answer and write it in. An agreement that says only "partners will contribute as needed" decides nothing.
Money out: distributions and records
- How often cash is distributed (monthly, quarterly) and how much stays behind as a reserve
- The order: operating costs, loan payments, reserve, any partner loans, then owners by share
- Who reports to whom, and when: a monthly statement is common, see what to include in an owner statement
- Who keeps the books and who can see the bank account
- Who gets the tax paperwork and when. For a multi-member LLC, see Form 1065
The IRS expects records that support income and expenses; the general rules are in Publication 583. For co-owners, a shared and complete ledger is what keeps the tax return and the partners aligned.
Deadlock: when two people disagree and neither gives in
A 50-50 split means a tie on every vote. Decide in advance how a tie breaks. Options owners use include a named tiebreaker or neutral adviser, a cooling-off period followed by mediation, or a buy-sell clause where one owner names a price and the other chooses to buy or sell at it. Each has risks: a buy-sell clause favors the owner with more cash. Choose with that in mind, and ask a lawyer licensed in your state how the clause will be enforced.
Exit, death and default
Answer these now: can an owner sell their share, and must they offer it to the others first? How is the share valued (an appraisal, a formula, a stated price)? What happens to a share when an owner dies, becomes unable to act, divorces or goes bankrupt? How long do the others have to buy? The next post, buy-out options, goes through the choices when one owner wants to leave.
If the owners hold the property personally and have no agreement, a court can be asked to divide or sell it. In California, for example, co-owners of real property interests may bring a partition action (Code of Civil Procedure 872.210, as of October 2026). It is a slow, public and expensive route that a written agreement is meant to avoid. State rules differ, so ask a lawyer licensed in yours.
Where DoorKeeping fits
DoorKeeping gives each property its own books and lets an owner invite a partner with a partner role, who sees the numbers and approves money. Owner statements and bank-matched rent make the month visible to all owners, at $2 per unit per month. DoorKeeping does not write the agreement or give legal advice.
Sources
- California Code of Civil Procedure section 872.210, read Oct 30, 2026
- IRS Publication 583, Starting a Business and Keeping Records, read Oct 30, 2026
Questions
- Do co-owners of a rental need a written agreement?
- It is strongly advisable. Without one, state default rules decide, and they may not match what the owners assumed.
- What is a capital call?
- A request that each owner contribute more cash by a set date, usually split by ownership share, to pay for a large expense.
- How do 50-50 owners break a tie?
- The agreement can name a tiebreaker, require mediation, or use a buy-sell clause. Choose it before a dispute exists.