I've done this before and this is how i did it. I knew the property was going to perform well- all the boxes were checked. I also paid cash and we were apart 50k from what the appraiser showed and what the owner wanted.
this was an off Market deal, I negotiated a 3 year 4% loan with the seller and. Closed the deal.
if you are smart you will still do the diligence if your paying cash including an appraisal. I have 375k into the deal, rented the property for two years at a 140kgross and will pay the owner off that note in about 11 mos.
the property is now around 650-700k.
depends on your situation but for the nominal difference your talking I say go for it but if you're leveraging the upfront you need to cash in the overage for the appraisal and vice versa if your cash up front then have the seller carry a note
from my experience- it also shows that the seller believes in the project by doing so
if they won't carry a note separately id potentially walk but thats because we do mostly cash deals and the inability of them to believe in what I am willing turn me off to the deal when your talking about this gap