As Josh noted above, it's really all about proper tagging and making sure each expense is categorized properly and coded to a specific property.one other tip is using an accounting system, you should be able to attach receipts as opposed to having paper receipts. 

Look for distressed signals like overgrown yards, boarded windows, maybe some code violations.

For your first BRRRR stop thinking perfect zip code and start thinking perfect math.

Run comps like an appraiser, not a wholesaler.Use the same zip code, same bed/bath count, same construction style.If your ARV isn’t locked in with confidence, nothing else matters.3.

Why do people want to call it a loophole when it is part of the Tax Code?

Generally there aren't huge "loopholes" to let you avoid things in the tax code.

They don't meet the building codes like a stick built or modular home would. 

(Answer: yes)"Do you mean "yes" to only the depreciation recapture from it being a rental; and the remaining gain being excluded under the limits of section 121 tax code?

Revised Code, specifically Chapter 5323,-------Designate an agent: The owner must designate an in-state agent for service of process.”

Your criteria is solid, and PA can work well for exactly what you’re describing, especially if you stay disciplined on neighborhood selection and rent-to-price.We do a lot of business in the Lehigh Valley, so a few practical notes on Allentown and nearby areas:Allentown can cash flow, but it is block by block.The same zip code can swing from stable to headache fast.