Carolla Sues Furniture Store for Poppin' a Squat

Having "The Man Show's" Adam Carolla for a landlord would be pretty cool ... unless you don't pay up ... then he'll crack down on you with some serious legal firepower.

Turns out Carolla and his wife Lynette own a building in Burbank that they rent to the Lounge 22 furniture company. In docs filed recently in L.A. County Superior Court, Adam claims L22 hasn't paid rent since May -- and on July 2nd, he gave them 3 days to pay up or get out.

The deadline came and went -- and Carolla has since fired off a lawsuit, demanding $44,913.42 in unpaid rent from May, June and July -- plus $499.03 for every day they stayed in the place past August 1st.

It's unclear when -- or if -- L22 left the building, but we're told some furniture is still on the property.