There are no restrictions on duration of rental from the HOA other than the unit cannot be rented as a STR/Airbnb.

What are the most promising alternative lending strategies for financing RE developments given the rising interest rates and tightening credit conditions?

If she doesn't, you are on your way to kicking her out.I suggest you tighten up your process in the future.

Zoning codes across different places did put limitations to ground-mount solar projects that exports and sales while roof-mount ones seem to be less restricted. 2.

I've seen condos restrict units from being rented out, causing investors to be forced to sell. 

You messed up and are complaining that the title company is being restrictive and not cheerfully accepting verbal abuse from your sellers.

Though, if you want to make changes with newer mobile homes there may be some restrictions (i.e. age, condition, etc.).

Your first comment regarding attending city commission meetings seems to indicate that you are referring to affordable housing under state statues (i.e income and other federal/state restrictions).  

However, downsides include regulatory restrictions on bank lending, many institutions that restrict concentration and geographies, and other headaches and issues that arise when dealing with a slower-moving bank.DSCR loans are the option that has completely changed the BRRRR lending landscape in the last few years.

I do manufactured home developments so I look for land that doesn’t have housing restrictions.