They couldn't get a construction loan and were constantly blaming the cities being tough on their permit process.

Sounds like you have a pretty poor security system.Even with a good security system, having a tenant provide ID is the first step in a professional screening process. 

Mark, I am in the process of completing a HELOC with Wells Fargo.

My current goal is to analyze properties for potential deals on BP pro daily and start wrapping my head a general understanding of the process. 

Though, this process will be the same for the other state (if you created a CA LLC you may need to register it as a foreign LLC in the state in which you are doing business/holding property).

This process is relatively simple and can be completed through a title company or real estate attorney.

Due to item 1, adding an ADU can require years to start achieving any return (once the accumulated cash flow recovers the initial negative position).4) Adding an ADU is a slow process.

We specialize in short-term rental investments through our integrated real estate, mortgage, and property management services, delivering expertise at every stage of the process.

Are they going to put you through hell during the process, and are you okay with it?

That time I was looking at getting 201 S Washington (a 5 unit rental) and S Washington wasn't designated as STR and Gettysburg City said that I had to go thru the process of applying for zoning licence which is followed by a hearing with the neighbors as the jury who would hand me the verdict - yes/no.I like analyzing markets and observing them for a number of months/years.