If you're looking to build your own, you also should build your own comp base.

Communicate well with the current tenant about your plan.

I just purchased my first property in Forth Worth to flip and I am based in Houston.

We take this to mean (based on 100s of real tax court cases) any activities integral to the business of running a rental.

Like any service based business, you're going to encounter a variety of types of fee structures.

Do mobile homes have a "book value" based on make/model, size, condition, etc. and if so, where can that information be found? 

Honestly I’d probably end up diversifying sales proceeds into stocks and some into DSTs to broaden my base.

You have to calculate based on a more than a few things like loan amount, down payment, taxes, Insurance, (Any HOA) PMI, based on credit, etc.If you are 1099 the Bank can look at the most recent 1099/Schedule C if you have been in business for 5 years or more with a 25% ownership in company or more. 

I recommend investing near economic bases near downtown and surrounding areas.

Hey @Felix Shi, your decision really should be based on your risk tolerance and goals.