This person had never used credit.

Sometimes only one person to help you and they're not quick, or not cheap, or you just don't like the way they work? 

@Elise Bickel Tauber Would be a great person to connect with!

I would guess that you have little or no experience running any kind of STR, and now want to get that experience on the back of someone else's investment, with little or no personal skin in the game, and that's not a good way to build an investment portfolio.

When I go to get more work done, I use the person that was fairly priced and met my expectations that first time, I do not shop around again for the lowest deal.

After hearing about, and personally encountering some horror stories of disagreements between homeowners and contractors, I am wanting to establish a clear contract to use with a new general contractor. 

This agreement is just like a listing agreement when you go list a home, you are hiring the right person for the job, so this is the same type of contract, but this person is hired to find you the right home. 

I personally have not experienced any government change that has ruined a deal for me.But fear not!

For my personal education, which one insurance should I have?

@Zach Howard there are a few loan types here in the states for foreign nationals, some that require personal income verification and others that do not.