Does a virtual wholesale fee hold up differently on a double close versus a straight assignment when the spread is the same number

Your math holds up and the real question is when you know enough to price the structure before you lock the contract.

The $2,600 gap you're describing is the cost of transactional funding plus two closing cost sets minus one, compared against a flat assignment fee. That gap is not fixed. It scales with the spread and compresses as your spread grows, because the transactional funding rate and the two closing cost columns are largely fixed or semi-fixed amounts rather than percentages of your profit. On a $10,000 spread the same compliance choice might consume 30% of your net. On a $45,000 spread it might be 5%. So the first structural variable is spread size relative to the fixed-cost floor of a double close.

The assumption doing the most work in your calculation is that a straight assignment was actually available on that deal. You walked away from it for compliance reasons, which means you had read seller behavior as a risk signal. That read may have been correct. An assignment that closes with a seller who later claims they didn't understand what they signed can cost far more than $2,600, and in some states the regulatory exposure compounds that. Your compliance instinct was priced at $2,600 in this case. That framing is more accurate than calling it a structural cost.

What you actually want to build is a pre-contract pricing model: transactional funding cost confirmed with your funder at current rates, two closing cost estimates from your title company, and your assignment fee benchmark, all laid against a seller-signal checklist that tells you which structure to underwrite before you make an offer. The structure decision and the offer price need to be made at the same time, not sequentially.

One thing you did not name: title company willingness to handle a double close varies by state and company. In some virtual markets that availability is not guaranteed, so confirm it per market before you build it into your model as an assumption.

What does your current offer process look like between initial seller conversation and the moment you submit numbers?

The $2,600 is your compliance premium, and it should be a line item in your offer math before you sign the purchase contract.

What changes the picture is how you handle the transactional funding cost as a function of the purchase price tier. At a $22,500 spread the funding fee tends to run 1.5 to 2 percent of the A-to-B price, so if the A-to-B was, say, $90,000, you paid roughly $1,350 to $1,800 just there, before the second closing cost column. On a deal with a higher A-to-B price and the same dollar spread, the compliance premium grows, and the assignment starts winning on math by a wider margin. What is the A-to-B price on that Tulsa deal?