First of all, from what you said, her claims sound baseless.
Secondly, you'll need to prove that you actually suffered compensable damages for harassment and slander. In both instances, economic damages -- i'm not talking about stress that your tenant caused -- I'm talking about tangible economic damages which flow directly from the slander -- are very hard to prove.
I'm not in California, and I don't want to discourage you, but given your description of what transpired between you and the tenant, it would not seem that this is the type of case is the type most attorneys would take on contingency.
DISCLAIMER: Brandy A. Peeples is licensed to practice law in the State of Maryland. This answer is being provided for informational purposes only and the laws of your jurisdiction may differ. This answer based on general legal principles and is not intended for the purpose of providing specific legal advice or opinions. Under no circumstances does this answer constitute the establishment of an attorney-client relationship. For legal advice relating to your specific situation, I strongly urge you to consult with an attorney in your area. NO COMMUNICATIONS WITH ME ARE TO BE CONSTRUED AS ARISING FROM AN ATTORNEY-CLIENT RELATIONSHIP AND NO ATTORNEY-CLIENT RELATIONSHIP WILL BE ESTABLISHED WITH ME UNLESS I HAVE EXPRESSLY AGREED TO UNDERTAKE YOUR REPRESENTATION, WHICH INCLUDES THE EXECUTION OF A WRITTEN AGREEMENT OF RETAINER.
You can talk to different lawyers and find out good one. I am not sure about contingency in your case.
DISCLAIMER—This answer is for informational purposes only. It doesn't constitute legal advice. This answer doesn't create attorney client relationship.
Dear I want to counter sue her?
I am an attorney licensed in New York. I do not practice law in California.
Your owner's liability insurance policy should help you and the insurance company should provide an attorney.
When you mentioned that the tenant is trying to sue you and your family for a lot, do you mean that you were served already with a summons and complaint? If so, then you must provide notice to your insurance provider right now.
Note: An attorney cannot work on a contingent fee arrangement defending a baseless lawsuit and seeking to litigate counterclaims that may not have merit as there is no contingent event expected to pay the attorney.
The answer provided to you is in the nature of general information. The general proposition being that you should try to avoid a bad outcome if you can.