Appraisers are using comparable sales that are dated, sometimes over a year old.

Tax sales are usually full of them.

Also, full disclosure - I have utilized creative financing & transaction structures (installment sale transactions, had the seller take back 2nd position notes, baked brokerage fees into the agrement of sale  in off market transactions to name a few), so I am not opposed to it, but they were utilized in very unique and circumstantial land entitlement transactions. 

Purchase price: $220,000 Sale price: $232,000 Beautiful cosmetic remodel that I wholesaled in Grafton, MA.

Purchase price: $161,500 Cash invested: $46,000 Sale price: $265,000 1915 old house comes with a lot of lessons to be learned !

Purchase price: $135,000 Cash invested: $15,000 Found a great starter home for sale that needed light cosmetic work.

You can obviously put a tiny house on any property but the rule for new development is 20-25% of the final sale cost in land.

if it is a divorce and you are buying her out you want a low number and if it is for a sale you want a high number"............No kidding!

@Barrington SmithI use this equationto back into my maximum allowable offer (MAO)ARV - Rehab Costs -Holding Costs - Purchase & Sale Costs - Desired Profit as a percentage ofARV = MAO

These do not qualify for 1031 treatment because a 1031 is a sale of investment real estate followed by a purchase of investment real estate.