I am in California and I have a case between my former landlord who is holding my security deposit and he is charging me expenses on top of that. We had an agreement that I if I bring a new tenant right away they will wave my last month. Unfortunately the deal with the tenant I brought didn't go through because they had a disagreement and this new tenant was mistreated by the landlord and ran away from him. I asked her to be my witness with a letter but she refuses to do so, saying that is not safe for her. Can I still mention her in the case and bring copies of texts I have probing that she felt unsafe, etc? Or I am infringing the law? Thanks in advance for any help you can provide.