lost faith in mass legal system

[Robert Beaupre]

I posted earlier about my tenant disrespecting me thinking they can just deal with service provider even though I am not in default. 

I took tenant to court for non payment or rent because he decided I owe him for a repair he made that I wasn't notified was broken. I just got the judgment and the judge ruled in his favor and I owe him money on top of not having to pay 2 months rent. I called my attorney who said it's going to cost more to appeal than just to pay judgment. This gets my blood boiling why am I responsible for something I didn't even know was broke and the tenant lied about cost (friend wrote receipt) and he  claimed he was displaced from residence when it was broke.

Can I just evict him and terminate lease for other reasons other than non payment. I do have neighbor complaints and the police have been there although no criminal charges.

This is a relative to make matters worse.