Our lawyer wrote up the loan doc, they borrowed $60,000 to renovate 123 main st, I got first position lien on 123 main st, they paid $500/month interest and the $60,000 lump sum back after 12 months.

I was not able to sue because lawyers thought he would be uncollectable and the county prosecutor's office stated that since it was a breach of contract it was not a civil matter. 

This is the oldest professional tenant trick in the book, but you should definitely get a lawyer on board now.

Or the market goes crazy and the property value goes way up but she says she gets all the gained equity because she's been paying the whole mortgage all this time and she's dating a lawyer now who is on her side... 

Should I hire a lawyer or find a property management company to handle eviction. 

One other thought is ask your lawyer that you are using to close on the property - he/she may be able to give you a template of something they use.

But SEC lawyers assured me that it's all negotiable. 

Since then she’s hired a lawyer because she felt that it’s unfair that shes only getting 30 days notice. she supposed to move out on the 26th of November she wants him to use the security deposit as last month rent but my friend runs the risk of the place being trashed if he does accept this will he still be able to fight for more money if the place does end up trashed and is there anything he can do to fight her to get the last months rent 

I've sold dozens of homes during the so-called Eligible Date Range, but figure any payout will be peanuts after all the lawyers get their take from the top. 

Take the following with a grain of salt, as I am not a lawyer, nor am I in your area.