A buy-sell agreement in real estate is a contract among co-owners that sets, in advance, what happens to an owner’s share when a defined event occurs: death, disability, divorce, bankruptcy, retirement, or a voluntary decision to leave. It fixes three things before anyone knows which event will come first: who may buy the departing owner’s interest, how that interest is priced, and where the money to pay for it comes from. For co-owned investment property, a family farm, or a stake in a real estate LLC, it is what separates an orderly transition from a courtroom fight.
Events That Trigger a Buyout
The agreement works by listing specific events that start the buyout process. The standard list includes an owner’s death, total disability, retirement, bankruptcy, divorce, and a voluntary decision to sell. Each item needs its own definition. Disability, for instance, should spell out that the owner cannot perform their primary role due to illness or injury, is under a physician’s care, and has remained in that condition for a defined waiting period. Twelve, 18, and 24 months are typical, and a longer period gives everyone more certainty that the condition is permanent before the buyout begins.
Some agreements add “deadlock” as a trigger for situations where co-owners cannot agree on management or strategy and cannot resolve it. Voluntary sale triggers usually attach a right of first refusal: before a departing owner can sell to an outsider, the existing co-owners get the chance to buy on the same price and terms.
Divorce deserves its own line in the agreement. Without a trigger covering it, a divorce settlement can hand an ownership interest to a former spouse who has no relationship with the other co-owners and no experience managing the property. Treating divorce as a triggering event lets the remaining owners buy out any interest that would otherwise pass to the ex-spouse.
How the Ownership Interest Is Priced
Valuation is the single most consequential decision in the document. Three approaches dominate, and each has a real cost.
A fixed price is a dollar figure the owners agree on and write into the agreement. It is simple, and funding is easy because everyone knows the number. The danger is staleness. An interest the owners valued at $500,000 five years ago may be worth $800,000 today, and a buyout at the old price is a windfall for the buyer and a loss for the seller’s estate.
A formula ties price to a calculation: a capitalization rate applied to net operating income, a multiple of rental revenue, or a percentage of appraised value minus debt. Formulas move with the property’s performance, but no formula captures everything. Market conditions, deferred maintenance, and lease expirations can throw off the number at the exact moment it matters.
An independent appraisal values the property or the ownership interest at the time of the triggering event. This is the most accurate approach, because it reflects current conditions, but it costs more, takes longer, and leaves the price unknown until the appraiser finishes.
Many agreements use a hybrid: a fixed price that the owners update by mutual consent every year or two, with an independent appraisal as the fallback if they fail to update on schedule. That structure trades simplicity against the risk of a stale number.
How the Buyout Gets Paid
A fair price is meaningless if the buyer cannot pay it. The agreement should state whether the buyout is a lump sum, an installment plan over a set number of years, or a combination. Installment buyouts typically run through a promissory note with a stated interest rate and payment schedule.
Funding is what makes any of this work. Life insurance is the standard tool for death-triggered buyouts: the co-owners or the entity carry policies on each owner’s life, and the death benefit provides cash to fund the purchase. Cash reserves, entity earnings, and outside financing are the alternatives for non-death triggers like retirement or voluntary departure. The agreement should match funding sources to triggers so there is no scramble when the time comes.
The Three Common Structures
Cross-Purchase
In a cross-purchase, the remaining co-owners personally buy the departing owner’s interest. Each owner holds a life insurance policy on every other owner. The main benefit is tax basis: the buying owners get a new cost basis in the acquired interest equal to what they paid, which reduces the taxable gain if the property is later sold. The drawback is administrative. Three co-owners need six policies; five owners need twenty. Premium costs and paperwork multiply quickly.
Entity Purchase (Redemption)
Under an entity purchase, the real estate LLC, partnership, or corporation buys back the departing owner’s interest itself. The entity holds the life insurance policies and uses the proceeds or its own funds to redeem the share. This is simpler to run, especially with more owners, because the entity carries one policy per owner rather than every owner carrying one on everyone else.
The cost is on the basis side. The remaining owners generally do not get an increased cost basis in their ownership interests after the entity redeems the departing share. Their original basis stays put, and the taxable gain on an eventual sale is larger. This basis difference between cross-purchase and redemption is one of the most important practical considerations in choosing a structure.
Wait-and-See
A wait-and-see agreement combines both and delays the choice until a triggering event actually happens. The entity gets the first option to redeem. If it declines or redeems only part, the remaining owners can cross-purchase the rest. Anything still unpurchased must then be redeemed by the entity. The layered design lets the group pick whichever structure is most tax-efficient at the time, rather than committing years ahead.
Tax and Legal Rules That Shape the Drafting
Life Insurance Proceeds and the Transfer-for-Value Rule
Death benefits received under a life insurance policy are generally excluded from gross income under federal tax law, which is what makes life insurance such an efficient funding tool. There is an exception. If a policy is transferred for valuable consideration, the death benefit may become partially taxable. This “transfer-for-value” rule can be set off when owners swap policies while restructuring a buy-sell agreement. Exceptions exist for transfers to a partner of the insured or to a partnership in which the insured is a partner, which is one reason partnerships are a common ownership form for co-owned real estate.1Office of the Law Revision Counsel. 26 USC 101 – Certain Death Benefits
Estate Tax Scrutiny Under IRC 2703
For family-owned real estate, the IRS can disregard the price set in a buy-sell agreement for estate tax purposes if the agreement looks designed to transfer property below fair market value. Under IRC Section 2703, the IRS can ignore any agreement that restricts the sale or use of property unless three requirements are met: the agreement is a bona fide business arrangement, it is not a device to transfer property to family members for less than full consideration, and its terms are comparable to similar arm’s-length transactions.2Office of the Law Revision Counsel. 26 USC 2703 – Certain Rights and Restrictions Disregarded Family members drafting a buy-sell agreement for shared real estate should have the valuation terms reviewed by a tax professional against all three requirements.
S Corporation Ownership Limits
If the real estate is held by an S corporation, the buy-sell agreement doubles as a safeguard for the entity’s tax status. S corporations can only have individual U.S. resident shareholders (with narrow exceptions for certain trusts and estates), cannot exceed 100 shareholders, and cannot have more than one class of stock.3Office of the Law Revision Counsel. 26 USC 1361 – S Corporation Defined A single transfer to an ineligible shareholder, such as a nonresident alien, a partnership, or another corporation, terminates the S election for the whole entity. The agreement should prohibit transfers that would violate these rules, and ideally void any prohibited transfer automatically rather than treating it as a breach that requires a lawsuit to fix.
Due-On-Sale Clauses in the Mortgage
Most real estate mortgages contain a due-on-sale clause that lets the lender demand full repayment if ownership changes hands. A buy-sell buyout can activate this clause and leave the remaining owners facing an unexpected demand to refinance or pay off the loan.
Federal law blunts some of that risk. The Garn-St Germain Depository Institutions Act prevents lenders from enforcing a due-on-sale clause on residential property with fewer than five units for certain transfers, including transfers on the death of a co-owner, transfers to a spouse or children, transfers resulting from divorce, and transfers into a living trust where the borrower remains a beneficiary.4Office of the Law Revision Counsel. 12 USC 1701j-3 – Preemption of Due-on-Sale Prohibitions Those protections cover many common triggering events for residential property.
The gaps matter. The Garn-St Germain exceptions are limited to residential property under five units and do not explicitly cover transfers into or between LLCs. A buy-sell agreement that moves a commercial property or restructures ownership inside a business entity may not qualify for any federal exception. Co-owners of commercial real estate or property held in an LLC should check with the lender or review the loan documents before assuming a buyout will not trigger the clause.
Where These Agreements Actually Get Used
Investment properties. Rental buildings, commercial properties, and development projects held by multiple investors are the most common setting. The agreement protects the collective investment by preventing one owner’s personal crisis from forcing a sale of the whole property, and it keeps strategy decisions with owners who are actively involved rather than passing them to an heir or creditor.
Family-owned real estate. Farms, vacation homes, and family portfolios bring their own complications because the owners are related. Emotional attachment, unequal finances among siblings, and generational transfers all make disputes more likely. A buy-sell agreement provides a neutral framework agreed to in advance, with a defined valuation method, so no one has to negotiate price with a grieving family member. For family property, the IRC 2703 requirements are especially important for the agreement to hold up for estate tax purposes.2Office of the Law Revision Counsel. 26 USC 2703 – Certain Rights and Restrictions Disregarded
Partnerships and joint ventures. Real estate partnerships and joint ventures are temporary by design: the partners plan to develop, hold, and eventually sell or refinance, and at some point someone wants out. The buy-sell defines the exit, including lockup periods during which no partner can trigger a buyout, performance milestones that must be reached before an exit is allowed, and the mechanics of unwinding the venture if it dissolves.5American Bar Association. All Joint Ventures Come to an End: Four Tips for Drafting JV Exit Terms
What It Costs to Set Up and Maintain
Drafting a buy-sell agreement for a real estate entity involves legal fees and sometimes appraisal fees if the opening valuation needs a professional opinion. Attorney costs vary with the complexity of the ownership structure, the number of owners, and the sophistication of the valuation and funding provisions. Simple two-owner agreements cost materially less than multi-party agreements with hybrid structures, insurance coordination, and S corporation protections. If the agreement calls for an independent appraisal of commercial property up front, that adds another layer of expense.
Ongoing costs include periodic valuation updates, life insurance premiums, and occasional legal reviews when the ownership group changes or when tax law shifts. Treating the agreement as a living document rather than a one-time cost is the only way to keep it workable when a triggering event finally occurs.
What Happens When the Agreement Fails
A well-drafted agreement prevents most disputes but not all. The most common failure point is a stale valuation. If co-owners agreed on a fixed price years ago and never updated it, the buyout price at a triggering event may bear no resemblance to the property’s actual value. The departing owner or their estate feels cheated; the remaining owners feel they are getting a bargain they did not plan for; both sides end up in front of a judge. The fix is simple in principle: review and update the valuation at least every two or three years, after significant changes in property value, and after any shift in the ownership group.
When a co-owner refuses to honor the agreement after a triggering event, the standard legal remedy is specific performance, a court order requiring the breaching party to complete the transaction on the agreed terms. Courts are more willing to order specific performance in real estate disputes than in most other contract cases because each piece of property is legally considered unique, and money damages alone cannot give the non-breaching party what they bargained for. The party seeking enforcement must show that a valid agreement exists, that they have met their own obligations, and that the other side has breached. Vague or incomplete agreements are harder to enforce, which is why precision in the drafting pays for itself the one time it is tested.