Deal structure

What is a Subject To Real Estate Deal and How Do You Do One?

A "subject-to" real estate deal means you buy a property subject to the existing mortgage, taking over the payments without formally assuming the loan. This strategy allows you to control a property with less upfront capital, leveraging the seller's existing financing.

October 8, 2026 · 4 min read

How "subject to" actually works

In a "subject-to" transaction, you purchase the deed to a property, but the existing mortgage remains in the seller's name. You, as the buyer, agree to make the mortgage payments. This differs from an assumption, where the lender formally transfers the loan responsibility to you.

The title transfers to your name, giving you ownership and control, but the original mortgage lien stays tied to the property and the seller's credit. This arrangement works best when the seller wants out of the property and its payments quickly, or when traditional sale methods are not viable.

Why a seller might agree to "subject to"

Sellers consider "subject to" deals for various reasons. Often, they are highly motivated to sell due to financial distress, relocation, or simply wanting to be free of a burdensome property quickly. If a seller has little to no equity, or cannot afford to make necessary repairs to sell traditionally, a subject-to offer can be very appealing.

This structure allows the seller to avoid foreclosure, preserve his or her credit, and get out from under mortgage payments without needing to bring cash to closing. It can be a solution when he or she feels trapped by his or her mortgage.

The due-on-sale clause and why it matters

Most mortgage agreements contain a "due-on-sale" clause. This clause states that if the property is sold or transferred, the lender has the right to demand immediate repayment of the entire loan balance. If the lender enforces this, the loan becomes due and payable.

While lenders rarely enforce the due-on-sale clause as long as payments are made on time, it is a risk that both the buyer and seller must understand. It is not financial advice, but a real estate attorney can help you understand the implications in your specific state or county. Consult a legal professional for guidance.

Key documents for a "subject to" deal

The core documents include a deed transferring title from the seller to you, such as a warranty deed or quitclaim deed. You will also need a separate written agreement outlining your responsibilities to make the mortgage payments, often called a "subject-to agreement" or "wrap-around mortgage agreement."

Other crucial documents include a power of attorney from the seller (to communicate with the lender), an authorization to release information, and a new insurance policy with you as the named insured and the lender as an additional insured. The seller's existing lender is typically not a party to the new agreement.

Risks and considerations for the investor

As the investor, your primary risk is the due-on-sale clause. If the lender calls the loan, you must be prepared to pay it off or refinance quickly. Another risk is the seller failing to cooperate if issues arise with the original lender, as the loan is still in his or her name.

You must also ensure proper insurance is in place and understand the tax implications for both you and the seller. It is crucial to set up a system to ensure mortgage payments are made accurately and on time, as late payments affect the seller's credit.

When to walk away from a "subject to" opportunity

Walk away if the seller is not fully transparent about his or her mortgage or financial situation. Any sign of dishonesty or reluctance to provide full documentation is a red flag. Also, if the property's condition or market value does not support your investment goals, it is not a good deal.

Consider walking if the existing mortgage has unfavorable terms, or if you are not comfortable with the due-on-sale risk. If you cannot get adequate insurance, or if the seller will not agree to provide a power of attorney, the deal is too risky. This is not legal or financial advice; seek counsel from an attorney or financial advisor.

Questions people ask

Does the original mortgage stay in the seller's name?

Yes, in a typical subject-to deal, the mortgage remains in the seller's name. You, as the buyer, take over making the payments, but the legal obligation to the lender is still the seller's. The deed transfers to you, giving you ownership.

What is "due-on-sale" and how big a risk is it?

The due-on-sale clause allows the lender to demand the entire loan balance be paid if the property changes ownership. While historically rarely enforced if payments are current, it is a legal right the lender holds, and it represents a potential risk that the loan could be called.

Do I need to qualify for the seller's mortgage?

No, that is one of the key distinctions of a subject-to deal. You do not need to qualify with the seller's lender, as you are not formally assuming the loan. The loan simply stays in the seller's name.

Can I do a "subject to" deal without a lawyer?

While it is technically possible, it is highly inadvisable. "Subject-to" deals involve complex legal and financial risks. Consulting a real estate attorney is strongly recommended to ensure all documents are correct and to understand all potential liabilities for both parties. This is not legal advice.