How you approach the mentor demonstrates how you will approach real estate investing.

Talk to a local bank about getting pre-approved.If you have to go with hard or private money, show them a couple hypothetical deals to demonstrate you know how to run the numbers, and ask them if they would lend to you if you found similar deals.

More cost effective, if someone time consuming, would be to change the most vulnerable pipe to high pressure PEX; I've seen demonstrations of PEX expanded absurdly beyond its size, with pressure and temperature, before busting.

I understand producing cash flow to demonstrate I have an income to be able to borrow in the future….so I don’t mind starting with a few rentals to bring that in but then I want to transition to building single family homes.

First, it's a demonstration that they have no respect for the written agreement.

Two payments thus far on a trial plan demonstrates that the borrower wants to keep the property and that they are capable of paying. 

It is interesting to see an old thread like this to demonstrate the crapola that was going on several years back.

I've seen a demonstration of Marko Ruebel's and it looks good.

They would have to hire a PI or some such to monitor water bills or do something else elaborate.If calling the notes for placing them in an entity was so routine a few years ago surely one could produce ONE court case demonstrating this.

In a new tab or window on your browser, open BiggerPockets and demonstrate the problem.