Seller Squats After Escrow Close

[Ardo Kalaydjian]

I purchased a home about two months ago, the deal was after we closed escrow the seller wanted to do a rent back for two months, which I was okay with. As of the end of August we were suppose to get our keys and the seller was suppose to be moved out. Now the sellers son has decided to stay and squat at the property for another month til the end of September, with the exception all of the escrow security funds coming back to me (buyer), am I entitled to split or give up any of the escrow funds with the sellers son due to him squatting in my new property. My intentions are to remodel and move into my new home. How can I take legal action to evict him out of my new home as well as claim the Security deposit back to me since of breach of contract on the rent back. Note the escrow company is aware of the breach. Would a Unlawful Detainer help the process of getting this squatter out of my home?

Any thoughts.

Thanks,