I founded a construction company in 2020, specializing in single/ multi-family renovations and new construction.

I never actually transacted with them though, and was hesitant to do so because of how new the company was at the time..

Your attorney, or title company, whoever handles closings in your state, is going to prorate the property tax due as of the day of closing.

Expensive homes get cheap AC units, but buyer doesn't know the difference. 

The property tax can differ majorly from one area/neighborhood/street to another.

I am wondering if I create an LLC to use as a managment company and use the tax benefits created within that.

Property management Company is demanding 1 month rent for failure to give 45 day notice of non renewal of lease plus 60 day rental fee for time for finding tenant. 

I've reviewed the ADU rules on some of the different city's websites, now I realize how much variance there is just within the county...For example, Santee has a new owner occupancy requirement that will go into effect on any ADU's permitted after 2024 and a strict no STR policy, La Mesa on the other hand seems really ADU friendly.Does anyone here have recommendations on which cities in SD county to avoid and which to explore for ADU's?

If you are in a bad neighborhood then you need to grow thicker skin to handle being a landlord in such a neighborhood.If this is loads of different guys/people then that is different than an individual.

Did you target a location and find a contracting company first to be prepared before hunting for deals?