My Mom Might Be Getting Sued

When I moved out from my dad’s house (With Daniel,my bro and Cissie,my mom) we moved to an apartment. So we lived there for about 3 months,then moved back to my dad’s. While I was living there a met a girl named Jadeah. Me and Jadeah became friends. My mom overheard Jadeah’s mom’s name,and called my aunt. Jadeah’s mom,Lorie,used to live in the campground with my aunt. Lorie is a felon,who got her driver’s license,and cannot get it back. To top that off,she was a meth addict,and so was her ex husband. When we moved out,we cleaned the apartment as well as possible. The fridge,carpet,EVERYTHING!! A couple weeks later (today) my mom got a phone call from the landlord. He was very,very mean about the situation,too. He said that Lorie called him and was complaining that our house was a mess and we had cats in the house. She had a dog AND a cat,and I watched. The cat pissed in the house and the dog sh*t in the house. Our cats never,ever used the bathroom on the floor. The landlord said that fleas were in the carpet,too,and has to replace it. We have to pay about 400$ extra on our rent (Something about breaking our lease? I don’t know,I’m just a kid. I don’t comprehend this stuff…) and said that he was taking us to court. But how,exactly,can he believe a felon who has identity theft and a lot of other…crimes on her record. Seriously,I have no idea how to put all of this. I How can we prevent from getting sued?