Class D properties look great on paper but provide so many headaches they normally aren't worth it. 

Wanted to know if anyone have read this book. Also, any recommendations on Note Investing would be gladly appreciated.

@Forrest Williams High crime areas is no good for anyone, unless you want to kid shot.In saying that, some people with experience don't mined working in lower demographic areas, BUT the returns are often not as good as they look on paper. 

They had been in a good tier for their mortgage at the beginning of the process, and were in B paper, with a high interest rate.Prepare your financial situation so that you have some extra money set aside for emergencies.  

The wholesaler is simply selling paper - it's up to you to take the deal and monetize it.I recently did a wholesale deal with an investor who completely screwed it up - instead of him making a quick 10k profit he decided to slowplay the thing by dragging his feet, taking 4 months to paint a 1200 ft SFR to end up walking away with only $3200. 

Obviously, we’ll sign papers so this is agreed upfront.

The Guidelines are same as long its under confirming loan limit.  2 years history is good enough  but lenders can accept working history from other county which can be verify by paper trail.  

Although some still cash flow on paper, I have heard that it is never a good idea to buy "the nicest house in the neighborhood," or in other words, pay the most per square foot for a neighborhood.

Had this financing lined up where told me they could do up to 75% (or 15% down), however when I actually got all the paper work ran through they will only do 85% down on multi family.

Once its on "paper", on some sort of addendum or notice, then that can open the contract back up for negotiation.