I want to, but can't, kick my tenants out of my rental

[Alex Shin]

Hello Everybody,

I've recently come by a very tired out of state landlord, call her Kait. The current tenants are her friend's daughter and daughter's husband. The current tenants haven't paid rent for years but keep the taxes current and paid. Kait is very interested in selling, and would like this problem to be taken care of, however, doesn't want to kick out her friend's daughter and ill husband. 

Do I get involved in this situation? There is motivation, but at the same time not, for the homeowner to sell her property. She's tired of the situation and the stress that comes with it, however, doesn't want to do her friend wrong. Adverse possession laws in California linger in my mind...   I normally don't like to get involved with situations where there's drama between friends and family so I'm not going to push her. I'll offer her the benefits of working with me and what I can do for her when we are able to do business but she has to make the decision to sell. 

Who has experience with situations like this? How would you handle this situation? What more information would you need to know to best help the homeowner?