Here is a potential option.
However, any 1L can tell you that houses are subject to zoning laws. Meaning that your neighbors may not want to live next to such an eyesore, and in fact, you may be barred from using a residentially zoned property for a primarily commercial use. The payment of your mortgage by the ad company only strengthens the argument of the intended commercial use. Not to mention the fact you may additionally need to procure a business license, assuming the use is permissible.