Tenant airbnb-ing unit, no subletting permitted.

[Jessica Wood]

Our problem tenant is airbnb-ing her unit without permission. We wanted her out due to another issue but have given her a seven day notice to cure that and she did (we are in Iowa). Now she is subletting and lease states no subletting. Iowa law says I have to give her a 7 day notice to cure since it’s a separate violation. She can just take down the listing and stay, even though she’s ALREADY MADE MONEY off of a property that I insure, maintain & pay for some utilities on? 😫😡 Is there any way to get her out?! I believe our lease says it’s null and void if broken. Does that prevail over the 7 day notice to cure? Should I get a lawyer?