[honkhonkpants]

Appraisers absolutely do pull numbers out of hats, because appraisers who regularly fail to write down a large enough number will stop getting calls.

[EpicEng]

That has not been my experience at all, and I'm pretty sure lenders would have a big issue with that if it were as rampant as you say.

[honkhonkpants]

What incentive does the lender have? The involved parties are the seller, the buyer, their agents, and the originator of the loan. All of these people are working to close the deal at the negotiated price. The originator of the loan will hold the loan for somewhere between 72 hours and 30 days, so they don't care.