How do I make my ex move out?

The guy I dated still is renting a place from my dad by my house its like a house connected to ours, and it's extremely hard for me to move on with him living here, him and his roommate keep making excuses to move and his roommate is lazy to even look for places he just cares about taking drugs and doing no effort, he is even part of problems we had in our relationship, I don't know how to make my ex take this seriously what can I say please? Just tired of seeing him and hearing him every day come home and leave it all just makes this process longer
How do I make my ex move out?
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