Appraisal came in 11k under. The seller met me at the number.
Side by side duplex, both units two bed one bath, built in the fifties. Contract at 342k. Appraisal came back at 331k and I sat with that email for about an hour before I understood what it meant for me.
My lender's explanation, once I got the right person on the phone, was that the loan gets sized off the lower of contract price or appraised value. So the 11k gap was mine to bring in cash or renegotiate away. I got two different versions of that from two people at the same lender before I got the one that held up, so get yours in writing.
What I tried first was a reconsideration of value. The appraiser used three comps and one of them was a single family that had been split into two units, which is a different animal from a purpose built side by side. I sent two duplex sales from within a mile, both about six months old. It went nowhere. Appraisers are not obliged to change their number and this one didn't.
What saved it was that the seller had already moved out of state and was paying two housing costs. I asked for 331k, he came back at 337k, we signed at 333k and I brought the 2k difference.
Rents are 1,450 and 1,375. Taxes 3,900, insurance 2,050, water and sewer runs about 95 a month on one meter, and I hold 250 a month for repairs.
The thing I'd keep is that I had a walk away number written down before the appraisal existed. Mine was 336k. Without that I would have talked myself into paying the whole gap because I was tired.