Rarely do you hear of landlords who fit the profile I just described complain about “unfair”  or “tenant friendly” landlord tenant laws.

Those loans do come with some restrictions and fees for the life of the loan. 

I don't know if you're trying to do this all with the same lender, but if you're taking up a majority of the office buildings, SBA could be an option which would allow you potentially less down and you can get away with some seller carry (not all lenders allow and/or structure this but some do)...and/or you could potentially wrap in more collateral (like that other property) which some will do (Again not all SBA lenders are the same; some get way more creative than others). 

I look for someone that can advice me on what to do with my money.

Some work I can do myself, but for time purposes, would hire out.

Apparently there are some cities in LA County like Santa Monica and Inglewood which do not allow this.How do you check which cities allow/disallow SB 567 "just cause" eviction through "substantial remodels?"

If you have experience in this, what are the cons/pros about doing a deal like this?

congrats your doing all the  vertical as well or going to sell lots to production guys. 

Mail out flyers is the best way.You can drive around the area that you are interested and see if it looks abandoned and find the owner.It's off-market so it means a lot of manual work on finding them. do a simple internet search and you will find many ways.

They do not know the entire story, so the rates and terms offered are just simply teaser rates to make you interact with them.