My mentor has over 300 multi units in his control, raised millions of dollars, and close to a decade of investing experience. 

However, I didn't read this sentence (or at least had a different understanding of what it meant, if I did) "the LLC is controlled by the original borrower or the original borrower owns a majority interest in the LLC".  

Drive up or controlled climate?'

I feel the two biggest factors would probably be rent control and eviction process.

Of course, that does not control mill rate and so on.

Forgot to mention that you should check laws to see if rent control laws apply to your property. 

generally speaking this would need to be done with either seller financing with release clauses or all cash .Major issues are going to be zoning and what can be done.. target props you like get feedback then go to the city or county whoever is the controlling agency and ask to talk to a planner this can usually be done over the counter will give you a quick look at what can and cannot be done. 

I didn't want to do rate buy-down because I plan on holding this property and will refinance as soon as inflation gets under control or we hit recession then rate will start to go down (probably 1-2 years in the future).

A quit claim deed will only remove any control you have over the property. 

I also plan to continue embellishing my monthly reports for quality control.