Cutting corners is easily recognized and never helps because you cannot prevent what is being said. 

It prevents you from participating as a partner in the projects.

I'm going to say that it depends what your goals are in seeking education.Cruising these forums, you'll see stories where people lost money because of what didn't know or didn't know to watch out for.At the same time, you'll find a pervasive and powerful bias against paid education.You'll want to decide for yourself which is the greatest expense: losing money on a deal (may or may not be deductible) or paying for education to help prevent losing money on your deals (deductible as a professional development expense).

It is good to have a few buyers identified before you try to wholesale flip because these sellers are in a HURRY and if you aren't able to offer SPEED (10-days to close) you are the not the solution to their problem.In general, I think this is one of those questions that prevents you from moving forward.  

Or the fact that there's just something inherently off with the unit thats preventing people from pulling the trigger.I recently had a house that I got the same great reviews during the walk thru.

In the past, your sister has had a third party in between her and the prospective tenant to prevent this sort of problem.

The important part is to prevent warmer, moister air from traveling to cooler surfaces where it will condense.

My question to anyone willing to share wisdom on the subject is this: is there any way to legally word a contract in order to prevent another $4,000 "overcharge"?

There's nothing to prevent an individual negotiating on behalf of their partnership.

The lawsuit, which alleged that the turf state laws harmed consumers by preventing access to the national market for commercial real estate brokerage and depressing real estate prices, was filed by a group of consumers, real estate brokers with Marcus & Millichap Real Estate Investment Services, a national commercial real estate services firm based in Encino, Calif. leading the suit.