Given your experience with RV parks and MHPs, you already have a strong foundation for managing mixed-income streams, which will be valuable here. 

Here’s an example of what I've used if they don't qualify based on what's on application. 

There are a few programs that can do second position financing but typically underwritten based on your personal income.

Also, the benefits of a cost segregation study can vary based on a multitude of factors.

I still think it's a good investment based off the numbers above regardless. 

Or is it calculated daily and the base rent increases after 10 days when the late fee hits the account?

Then at the last minute, I had a strong instinct to pull out and did not follow through.

@Adam M.The cost for a real estate tax accountant will vary based on location, experience, education and other factors, just like any other professional.

Even if their online banking and technology is not as strong, the ability to take advantage of their ancillary banking services, most notably their real estate lending far outweighs any minor inconveniences. 

These things going to court you have to Steel Man the argument and if you can do that with a good base for your side being in the right/wining the argument then you may be able to win in court.