Any suggestions for fighting ridiculous accusations about animal care?

Recently, one of the neighbors has been reporting several false claims against my best friend for how she cares for her dog. The first report stated that the dog was left unattended on the front lawn, which wasn’t true as someone was nearby. Another claim stated that the dog was not vaccinated, which it is. Another claim stated that the dog was not microchipped, which it is not and the family will take care of if necessary to meet local laws. Another claim stated that the dog was in poor containment conditions. Another claim stated the dog does not have adequate source of food and water. These are all inaccurate and were not filed together, but over the course of a few days.

At the moment the dog is being housed by animal control because the mother is fed up with dealing with the neighbors. My friend is frantically trying to find a friend or family member to adopt the dog until they can sort things out because she does not want to lose her pet, but does anyone have suggestions for a scenario like this?