Replies on Duration of Immunity and Rabies Vaccination

My mothers 14y.o. Golden Retriever has had DM for at least 2 yrs now. I did notice his bark became very hoarse 2-3 years ago. I just read an article on DM this year that listed hoarseness as a symptom, the first I had heard of that but it reinforced my DM diagnosis. He has had some acupuncture with my holistic vet last yr but is doing really well on turmeric (curcumin) twice a day. He does have more trouble in the winter with deep snow. He hasn't had a rabies or other vaccine in many many years and has been fed raw for over half his life.
Ten years ago my GSD/Lab had DM and within the same year became incontinent, having BMs without knowing it. He died at 12 while napping on the cool barn floor on a very hot June evening, but had been running around just that morning and even stole a piece of meat from my dobe - his hindquarter weakness was worse walking and easier running. I didn't notice a change in his bark.

I am trying to figure a way out of the rabies mandate in town. It is very difficult to fly under the radar in a small town. I am hoping by 2017 when he is due again that MA either accepts titres or I can find a holistic vet who will write me an exemption letter. Crossing all paws.

When I took Chuck to the neurologist when he first starting dragging his feet, he told me that it was "pretty common" for DM/lower spinal neuropathy to follow LarPar. I had joined a non-surgical options group on Yahoo and was very surprised how many dogs had the same issue, the back end following the front end. Dr. Marty Goldstein and Dr. Pitcarin spoke about conium maculatum (sp?) which I got from a certified homeopath, but I noticed only minimal effect. Sadly, as you mentioned, there is nothing to be done but try to treat the symptoms. I did acupuncture and water therapy which I credit for an additional 8 months that I do not think I would have had with him.