How to deal with an abusive landlord?

This guy has slashed our car tires. Not done any maintenance on the house. There are rats and cockroaches running around in the house. He has taken more money from my family with rent. He verbally harasses my family. He barges into the house at times without permission. He even was given $60,000 from the state and still had the audacity to come to my family and say that we need to pay rent. He tried using a fake notice to make us leave instead of going through court. He says his lawyer is waiting for a response from our lawyer when his lawyer is not even a real lawyer to begin with. He’s avoiding court as you can already tell. What do I do?
How to deal with an abusive landlord?
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