What is a subject-to financing deal in real estate?
A subject-to deal is a purchase where the buyer takes legal title to a property but the seller's existing mortgage remains in place, untouched, still in the seller's name. The buyer does not assume the loan in the legal sense — they simply make the payments going forward. Closing costs are low because there is no new financing to originate, and the buyer can often get into the deal with little cash beyond the seller's equity spread, prorated taxes, and any cure of arrears. The transaction closes with a standard deed transfer; the lender is not a party to the deal and typically is not notified.
The most common subject-to scenario involves a distressed seller who has little equity, is behind on payments, or needs a fast close that a retail listing cannot deliver. The investor steps in, brings arrears current if needed, takes the deed, and then either holds the property as a rental, sells it on a wrap mortgage or lease-option, or refinances out of the seller's loan once the property is stabilized. The seller gets relief from a payment they can no longer manage; the investor acquires an asset without originating a new loan at current rates.
In a subject-to deal, the buyer takes title to the property while the seller's existing mortgage stays in place and in the seller's name.
What is the due-on-sale clause and how real is the risk?
The due-on-sale clause — formally an acceleration clause — is standard language in virtually every residential mortgage originated in the United States after 1982. It gives the lender the contractual right to demand full repayment of the outstanding balance the moment title transfers to a new owner without the lender's written consent. That right is real. If a lender exercises it and the investor cannot refinance or sell quickly, they could face foreclosure. The operative word is 'right' — lenders are not required to accelerate, and in practice most servicers do not, provided the monthly payment keeps arriving.
The actual trigger most servicers watch for is a hazard insurance change showing a new owner, or a title search run when the loan is packaged for secondary market sale. Lenders that hold loans in portfolio (smaller community banks, credit unions) are statistically more attentive than large servicers passing loans through securitization pools. The risk is also asymmetric: a loan at 3.5% that the investor wants to preserve is worth keeping quiet about; a 7.5% loan the investor plans to refinance within six months carries near-zero practical due-on-sale exposure because the investor intends to pay it off anyway. Evaluate each loan on its own facts, not on a blanket assumption that lenders never or always accelerate.
