Miriam,
Thank you for the in-depth response. I really appreciate it. I have yet to try the null approach. This business is in good standing, and has been for the 4 years I've worked with them. We did change website the domain name recently, and TDLF did relocate almost a year ago.
A great deal of leads came from mobile search, which, of course, come from local places listings and this has caused a serious drop in phone calls. Ben (the owner) noticed immediately, before even knowing what had happened. One thing we did take into consideration, is that other law firms sometimes play dirty. I'm wondering if someone could have flagged this as being closed in an effort to "get ahead". I know of other law firms I work with who claim that other firms will engage in similar behavior by clicking on PPC ads of competitors' - knowing that an "injury attorney in Denver" ad may cost $30-40 per click. We've even caught competitors bidding on our firm's names, which lead to a landing page about why not to hire that firm, yada yada yada.
So...yesterday I actually spent 3 hours on the phone and was able to reach the person who, supposedly, in charge of the "map" in the entire state of New Mexico. For some reason I have doubts about this, but we'll see what kind of response we get.
It just seems like there would be a "switch" somewhere with the options: Open or Closed.
I'll post an update when I resolve this...if I have anything going for me its persitence. I once reached the CEO of a well known airline after 4 hours on the phone - when my bags were misplaced.