If that isn't satisfactory speaking at a city counsel meeting about the subject would also seem appropriate. 

I've purchased land with a mobile home and took the mobile home subject to.  

Let's say there's 3 properties in a 1-mile radius with 5b/3b, but one is a foreclosure and the other 2 are regular conventional sales.If you're doing a comp for your subject (4th) property, do you have to take the foreclosure one into consideration?

My goal is to live in the home during the winters, maybe 3-4 additional weeks for vacation, then rent it out to help cover the mortgage the rest of the year.  

Another strategy is "Subject To."

Avid reader on the subject.

We cover a large geographical area (nearly 400 miles) because there are usually only a few STR eligible properties for sale in any given city.  

You are afraid of rent control, but if you add an ADU and it is detached, the main house (if built prior to 1978) may eventually become subject to LA Rent Control. 3.

A few things we’ve been thinking about* Appreciation > Cash Flow: We care more about appreciation in a few years as long as cash-flow can cover occasional cap-ex.* Low Hands-on operation: We prefer minimal hands-on engagement.

I'd look at that as well as the Zoning Ordinance and Subdivision Ordinance, which every Pa township, borough or city has, or if they don't have those docs, they are covered by the county codes.