Raven
Good news! Therapy Dogs Incorporated (not to be confused with Therapy Dogs International) allows raw feeding. They also accept titers instead of rabies vaccines (I can't remember the titer number required.) The titer must be accompanied by a note from a vet saying it wouldn't be good to vaccinate. (This isn't hard if you find a good vet like Dr. Falconer, they are around).
I am so thankful that this organization is ahead of the rest of them! The problem becomes the county you live in. If your county doesn't accept titers then your dog can not (legally) do therapy work there, but most places therapy dogs visit do not check on this. So, there are therapy dogs working out there eating raw and not getting vaccinated. Hurray!