Hire an engineer to help you draft specifications and a create a solid contract that dictates pay apps.  

Looks like a fairly solid deal in my opinion.

You can have solid walls for foundations but they have to be designed for flood impact per FEMA.  

I am in the camp I do not trust management companies they fall short of my standards .I say make it a full time job your name will become known as a solid owner of properties one result will be longer leases .More time to keep adding to your portfolio too.

While I have no direct evidence of fraud, she has made getting any information impossible.  

You can find some pretty solid numbers floating around. 

Take pictures of the condition of the rental; typically 50 to 100 pictures to later download on my home computer as evidence for justifying not returning the security deposit/suing the tenant.2.

You will find a great deal of solid information on wholesaling on this site.

Should I tell people "we are looking for qualified applicants with solid credit and at least X in income"?

Point is, payroll companies don't have insurance that will be the same as yours, they may have WC but don't necessarily need to have CGL, Excess, Umbrella, or Vehicle, so basically their advice is not solid enough.