Oops! Sorry I forgot the link. Case documents filed in Montgomery County Circuit Court Maryland.
But it sounds like they have more than one location. Tenn and Va mentioned in dox.
Bill Belichick learned to film signals of opponents from the former Chiefs, and Charger's coach Schottenheimer. Others like Edwards, Johnson and Cowher did too. They learned from the CHEATS and CHEATERS who still couldn't win.