How Does Seller Financing Work? A bank isn't involved in a seller-financed sale; the buyer and seller make the arrangements themselves. They draw up a promissory note setting out the interest rate, the schedule of payments from buyer to seller, and the consequences should the buyer default on those obligations.
California's Home Solicitation Sales Act – allows the buyer in almost any consumer transaction involving $25 or more, which takes place in the buyer's home or away from the seller's place of business, to cancel the transaction within three business days after signing the contract.
In short yes, they can back out of a contract at anytime. However, depending on the reason or time, they could be in default of the contract and open themself up to legal damages.