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Subject-To Real Estate: Taking Over the Existing Mortgage

Subject-to is short for "subject to the existing financing." You buy the home and take over making payments on the seller's current mortgage, which stays in the seller's name. It's a powerful but risky creative-finance structure.

How subject-to works

In a subject-to deal, the deed transfers to you — you own the property — but the existing mortgage stays in the seller's name and is not paid off at closing. You simply start making the payments on that loan. You're buying the property subject to the loan that's already attached to it.

This is different from a loan assumption. In an assumption, the lender formally agrees to move the loan into your name and underwrites you as the new borrower. In subject-to, the lender is usually not involved and the loan stays in the seller's name — which is exactly where the risk lives.

Why buyers and sellers use it

For buyers, subject-to can mean little or no new financing, a low cash-to-close, and inheriting an existing interest rate — which is extremely valuable when current rates are much higher than the seller's locked-in rate. There's no new loan to qualify for.

For sellers, it's often a way out of a tight spot: relief from payments they can't keep up with, a way to sell a home with little or no equity, or a faster exit than a traditional sale. The seller stops making payments and you take over — but the loan, and the credit risk, are still tied to them until it's paid off or refinanced.

The due-on-sale clause

Almost every conventional mortgage contains a "due-on-sale" clause: if the property is transferred without the lender's consent, the lender has the right to call the entire loan balance due immediately. A subject-to transfer can trigger this clause, because title changes hands while the loan stays in place.

In practice, lenders don't always call loans due as long as payments keep arriving on time — but they legally can, and rising interest rates make them more likely to. If the loan is called and you can't refinance or pay it off, you can lose the property. This is the single biggest risk in a subject-to deal and you should price it in before you commit.

Protecting yourself in a subject-to deal

Both sides need protection. The seller's credit is on the line because the loan stays in their name, so payments must be made reliably — many deals route payments through a third-party servicing company so there's a clear record. The buyer needs assurance the seller won't take out new loans against the property or stop cooperating.

Get insurance sorted correctly (the lender and the parties on title both have interests), confirm the loan balance and terms directly, and document everything. Because of the due-on-sale exposure and the title/loan mismatch, subject-to is the structure where professional review matters most. The Creative Marketplace is a marketplace that connects buyers and sellers — not a lender, broker, or law firm. Before you sign any creative-finance contract, have a title company or a real estate attorney review the documents and confirm clear title.

Key takeaways

  • Subject-to means you take title but the seller's existing mortgage stays in their name.
  • It can let you inherit a low locked-in interest rate with little new financing.
  • The due-on-sale clause lets the lender call the full balance due — the core risk.
  • The seller's credit stays exposed until the loan is paid off or refinanced.
  • Run payments through a servicer and get a title company or attorney involved before signing.

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