*The three men convicted had been identified as operating property management companies that secured some of the properties from legitimate landlords by offering to manage them, but instead allowed organised crime group members to set up large-scale cannabis grows."

The sentences seem to encourage this, millions of pounds of products and all one guy got was a suspended sentence. A financially desperate letting agent would be daft not to?

The property damage from these kind of grow farms is substantial, ruining a landlord who's insurance often doesn't cover it by default. Check your insurance