Should you find/assign the contract to an end buyer the broker is full right to all commission made on the sale of the property as they have the exclusive right to sell the property NOT YOU, and the seller will need to pay the broker a commission. 

Your best defense is to RTFC - Read the full contract, the FAR-BAR contract for sale of real estate (whichever one was used), and any agreement with the buyer or seller.

The price is at a discount and the house needs a full reno but the comp ranges are extremely tricky.

@Aaron McCurdy For whatever it's worth, some the "tone" (dangerous to infer online) is along the lines of "I need something to do that will make some money but it doesn't have to replace the full $100K."  

You'll end up paying the tenant back in full..more than likely

Good full doc income and reserves.

Also contact the NC Dept of Health and Human Services.

For example, typically if a tenant leaves the unit in good condition, we'll refund the full security deposit minus a nominal cleaning fee.  

Or I contractor gives me a quote for a full system replacement, when 3 others said it just needs a repair..  

Not guaranteed, but my guess is they are getting a full check. - After hurricane Katrina squatters were a major problem.