I would like to amend my post. Find the owner using propertyshark.com write them a letter detailing the illegal drug deals going on and let them know you are sending a carbon copy to the police. That they may lose their investment if said activity continues. If the owner knows there is drug dealing going on and they do nothing about it they could be forced to forfeit their property as part of drug seizure laws. I would bet money that they will be evicting said tenants promptly.
