Tenants Brought Bed Bugs

[Devin M.]

*skip to the last paragraph for the question, but reading the whole thing will give context*

We bought the duplex last year, and it already had tenants. We live in Michigan, and couldn't get rid of the tenants. We moved into one side of the duplex shortly after we bought it.

In October, right before the tenants moved out, we noticed we had bed bugs. We had an inspector check both sides, and based on the severity of the tenant side compared to our side, it was determined that the tenant side was the cause of the infestation.

Meaning, the tenants were most likely the source.

Three times we have sprayed (ourselves) a chemical called CrossFire. It's insanely highly rated, and professionals use it. It's helped tons. We thought we were rid of them, and haven't seen any signs since. BUT, I was prepping the tenant side for paint the other day and noticed one on a heater vent. 

I called a professional company, and they said that the reason we have seen such great results on our side, is because it's inhabited and likely did a lot of damage to the bugs because they've had to cross over the chemical. But, on the tenant side - because it's vacant - the bed bugs have probably gone dormant, and likely haven't come into contact with the chemical. So they are going to do a heat treatment to kill even the dormant bugs hiding in the walls and such.

* My question is: If we have a professional come out, and treat for bed bugs, would we then be free to rent out to tenants after waiting the two-week period recommended by the extermination company? Can you make a clause that allows you to spray in prevention of these little pests? Any help would be appreciated. Absolute nightmare. Thanks everyone!