If a wholesaler screws around town, the big players will learn that very quickly and will stop dealing with the person.

Scoured BP for podcasts, blogs, etc to find out who the great players are?

If the lender says that the buyer needs $8k to close, that's a huge red flag; if the budget is this tied, the deal can fall through, with other small things coming up in the future in this transaction.

However, the presence of personal items like clothes, a suitcase, and a pot on the stove inside the RV raised red flags.

Any large deposits into that account will be a red flag.

By the time you get to know the market, you'll have a better understanding of the players, including the wholesalers and investors.

You can find out a lot that way too.Finally - know that there are usually plenty of seasoned players bidding against you.  

That said, it's definitely a red flag.

I say, that is a great deal for a second.Now, in this real example, the purchase price of $415k and rehab of $16k (that seems terribly low, so red flag for me on this portion), places this at an all-in deal (acquisition plus rehab) of 75%.

There are lots of red flags here.