Lower loan coupon versus greater closing certainty

A lower coupon can justify some execution cost, but it cannot fund an unlimited delay. Compare the quoted financing advantage with specific adverse closing outcomes, then separately test whether the borrower can supply the cash when those outcomes occur. A probability-weighted average does not pay a seller extension fee.

“Greater closing certainty” should describe identified evidence: completed credit approval, an accepted property condition, approved ownership, cleared reports, agreed documents, and confirmed funding mechanics. It is not an attribute established by a lender’s brand or an assurance that no remaining condition can fail.

Price the financing advantage on common terms

Assume two hypothetical offers for the same $6 million loan, three-year term, interest-only payments, and $60,000 fees. Offer L charges 6.25%; offer H charges 6.75%. Both are assumed to permit the same scheduled payoff without another charge. The borrower expects to hold the loan for all three years.

L’s annual interest is $375,000; H’s is $405,000. The three-year difference is $90,000. Including their equal fees, their modeled financing costs are $1,185,000 and $1,275,000. Principal repayment is equal and excluded from this expense comparison.

That $90,000 is the amount available to absorb L’s additional execution costs before its nominal financing advantage disappears. It is not a guarantee of savings: a shorter holding period, different funded balance, amortization, exit charge, or changed final loan amount requires a new comparison.

Attach costs to actual delay events

For this illustration, L has an unresolved property-approval issue. H has completed that review, with its remaining conditions listed and assumed achievable on the current schedule. H can also fail; the table isolates the additional issue in L rather than claiming H is risk-free.

Assume the seller has supplied written alternatives for a seven-day extension costing $60,000 or a fourteen-day extension costing $120,000. The buyer also incurs $3,000 of additional carrying and transaction expense per delayed day. Those daily expenses exclude loan interest already included in the three-year model, and the extensions do not shorten the modeled loan holding period.

If the seller has not offered an extension, do not insert these prices. The real branch might instead involve contract termination, a disputed deposit, or a new negotiated price. Counsel must assess the actual purchase agreement; this example does not establish a right to extend.

Use probabilities only as transparent assumptions

A scenario-weighted calculation can identify what belief is required to favor L. It cannot establish that belief from the rate quotation.

Suppose a decision maker assigns 50% to no delay, 30% to seven days, and 20% to fourteen days. The assumed additional cost is $56,700: 0.30 times $81,000 plus 0.20 times $162,000. L’s resulting expected advantage is $33,300.

Change the weights to 20%, 30%, and 50%. The assumed additional cost becomes $105,300, exceeding the financing advantage by $15,300. Neither set of weights is a measured lender failure rate or a market forecast. They are sensitivity inputs, and the choice reverses when the inputs change.

With only two possible outcomes—no delay or the fourteen-day branch—the break-even probability of that branch is $90,000 divided by $162,000, approximately 55.6%. Additional unmodeled adverse outcomes would change that result. Do not describe 55.6% as the actual likelihood of a problem.

Apply a separate cash feasibility test

Assume the buyer has $100,000 of uncommitted liquidity after all scheduled closing uses and reserves. The seven-day branch leaves $19,000. The fourteen-day branch requires $62,000 more than the available liquidity.

Even the first probability set, which favors L on expected cost, does not solve that $62,000 funding gap. The borrower needs an available capital source, different seller terms, or a decision rule that avoids entering the unfundable branch. A prospective partner’s interest or an unsigned line of credit does not supply the missing cash.

Also test timing. A seller may require an extension payment before the lender resolves its issue. A later loan reimbursement cannot meet an earlier payment unless an interim source exists. Treat a refundable deposit according to its actual release date, not as cash available throughout the transaction.

Replace confidence adjectives with evidence

Build a two-column conditions record. For each offer, identify what is approved, what remains open, who can clear it, and the latest evidence date. Mark whether the remaining item can change amount, pricing, documents, or closing date. Ask for the actual condition rather than an informal statement that the transaction is “basically done.”

The OCC commercial real estate lending handbook provides supervisory context for underwriting and documentation at covered banks. It does not assign a funding probability to either hypothetical offer or certify a borrower-facing timetable.

Recalculate when a material condition is resolved. If L receives final approval and both offers have equivalent remaining dependencies, its supposed execution disadvantage may disappear. If H introduces a new condition, its premium needs fresh justification. Keep the comparison tied to the current evidence and the specific money at risk.

The decision record should show three separate conclusions: the financing-price difference, the cost of explicit execution scenarios, and the cash needed to survive them. Combining those into a single impression of certainty obscures the condition that can actually prevent closing.