Far too many appraisers rush things or play it overly safe to protect themselves and the lender, which is understandable. 

There are many small variations of this.

Having a rough idea of what interest rate you can expect is crucial for you to play well in this game.There are many factors that determined your interest rates including base rate (update daily), loan amount, location, LTV (loan to value ratio), credit score, house type (single family vs condo) etc.So to help yourself estimate, you can talk to your friends who have done mortgage recently and ask about their rates and how they get them.

Wholesaling (Which is really contract assigning as most think of it) is sort of playing in a loop hole.

The seller actually played my offer against another investor. 

Buy n hold has many variations to it; BRRRR is just one  tool in your tool box.

Savvy hosts who play their cards right are therefore able to make significant revenues during this period.RevPARFor newer hosts and property managers, RevPAR — revenue per available room — is the most important metric in the vacation rental industry.

I don't remember what the other variations we offered, but basically we tweaked down payment, interest and note terms on each offer.

With this is mind, I want to make sure I understand the total wealth building strategy of this one time play.

Commercial agents specifically don’t join the National Association of Realtors so they don’t have to “play by the rules.”