You should be looking for a lawyer not accountant

This could include a small policy issue.My suggestion is you hire a very good, experienced eviction lawyer to handle this for you.My belief is with a hostile tenant, you are beyond any rationale discussion but I include the following to discourage cash for keys.I never do cash for keys.

Did you use a lawyer/agent to assist in your protest?

To use this lease we would have to make a number of changes and we want to avoid having to hire a lawyer to review it so we can keep our costs down.

@Leonardo Martinez you might get some specific San Francisco help here but the laws in your area are so specific you probably should get a lawyers advice.

I have now retained a lawyer. 

But honestly if she can barely make mortgage payments on a home they bought for $350K, will she be able to do payments on another $100K which is what she'd need to buy him about.She should also get a lawyer because if she's the one who has been doing all of the payments on the home for the last 2 years, then she needs to make sure she gets some of that money back when they sell it (ie not 50:50 until she's taken her bit out for the last 2 years of mortgage payments and property taxes, etc). 

I did my first one with the help of my buyers agent, the title company who supplied the promissory note for free, and a few hundred bucks for my lawyer to review the docs prior to closing.

I do know that LLC may not offer much protection with a decent lawyer. 

We'd have a lawyer write up all the contracts, put it in a LLC and have a property management  company handle it.