How to Vet a Buyer Before Offering Seller Financing

Why vetting the buyer is the most important step before you sign

When a bank finances a mortgage, an entire department exists to verify the applicant's income, credit history, and ability to repay before approving a single dollar. When you finance the sale of your own property, you are that bank, but you rarely have that same evaluation process in place. The result is that many sellers sign the note and deed based on a good first impression or a referral from someone they know, without confirming whether the buyer can actually sustain the monthly payment for years to come.

The risk of skipping this step is not abstract. If the buyer stops paying six months or a year in, your recourse in Puerto Rico is a judicial foreclosure, a process that takes time, legal fees, and can stretch out further still if the property is the buyer's primary residence, since Act 184-2012 requires compulsory mediation before the case can reach judgment or auction. Vetting the buyer before you sign is, in practice, the only real protection you have against that scenario.

This does not mean treating the buyer like a suspect or turning the sale into an interrogation. It means applying the same level of diligence a bank would apply, adapted to a transaction between two individuals, so the decision to finance is grounded in data rather than trust alone.

What financial documents to request before accepting the deal

The starting point is the buyer's income. If they are employed, ask for their last two or three pay stubs and an employment letter confirming their position and time with the company. If they are self-employed or run their own business, ask for the last two years of their income tax returns, since that document reflects real net income, not just what the business bills.

Beyond income, ask for their last two or three months of bank statements. This shows you two things: whether they actually have the cash on hand for the down payment you are requesting, and whether their spending pattern is consistent with what they claim to earn. A buyer with irregular deposits or frequent overdrafts is a sign that monthly cash flow is more fragile than the initial conversation suggests.

Finally, consider requesting a credit report. In Puerto Rico, you can have the buyer authorize a pull or have them obtain their own report from a credit bureau and share it with you. It is not a legal requirement to finance a sale, but it gives you a quick view of how the buyer has managed other debt, credit cards, an auto loan, or other mortgages. A history of consistently late payments is information you want before you sign, not after the first missed payment.

Red flags that signal a higher risk of default

There are patterns that, while they do not automatically disqualify a buyer, deserve a deeper conversation before you move forward. The first is a down payment that is disproportionately small relative to the sale price. The less of their own capital a buyer puts in up front, the less they stand to lose if they later decide to stop paying, and the less cushion you have if you ever need to recover the property.

Another pattern is inconsistency between what the buyer claims to earn and what their documents actually show. If they tell you they make $4,000 a month but their bank deposits average $2,500, that gap needs an explanation before you proceed, not after. Similarly, a buyer who avoids sharing complete documentation, who only offers partial screenshots, or who insists you just "trust" them without backing it up is asking you to take on a risk no bank would ever accept without evidence.

It is also worth paying attention to existing debt that already eats up a large share of the buyer's monthly income. If they already carry a car payment, credit cards, and other obligations that add up to a significant portion of what they earn, stacking your monthly payment on top of that can leave them with no cushion for the unexpected, and an unexpected expense is usually exactly what triggers that first missed payment.

How to size the down payment to the buyer's risk profile

The down payment is not just a closing formality, it is your main protection tool as a private lender. The higher the down payment, the more skin the buyer has in the game, and a buyer with more capital invested has more reason to keep paying through a rough month, because losing the property would mean losing that upfront capital too.

There is no minimum down payment required by law in Puerto Rico for a seller-financed sale, so the decision is entirely yours as the seller. A reasonable approach is to size the down payment to the risk profile you identified during the vetting process: a buyer with stable income, a solid credit history, and complete documentation can justify a lower down payment, while a buyer with red flags, variable income, or a weaker credit history should come with a higher down payment to offset that added risk.

You can also pair the down payment with other terms in the note to balance risk, such as a slightly higher interest rate or a shorter amortization period ending in a balloon payment a few years in. An attorney in Puerto Rico can help you structure these terms correctly in the note and mortgage deed before closing.

How Lend. helps you track the payment history once the deal closes

Vetting the buyer reduces risk before you sign, but the protection does not end at closing. Once the buyer starts paying, you need an exact record of every payment to catch early signs that something is changing, like a payment that arrives a little later each month or a pattern of delays starting to form.

With Lend., you enter the note's terms once and the system generates the amortization schedule automatically. Payments your buyer makes via ATH Móvil, Zelle, or ACH are detected and recorded without you having to reconstruct the history by hand, and your dashboard shows you immediately whether a payment is on time or late relative to the grace period you set in the note.

That record is also what supports your Form 480.7A if you are regularly in the business of lending money, and it is the evidence you would need if the buyer eventually stops paying and you have to pursue legal action. The initial vetting tells you who you are financing; Lend. tells you, month by month, whether that decision still holds.