I am the dog owner in a dog bite incident, what should I do next or what kind of lawyer should I fine? I need help

I received a letter from a personal injury law firm regarding a document request and notice to preserve evidence related to a dog bite incident involving my dog and a neighbor. This happened in October 2024 in the common area of our apartment building. I do not have renters insurance, and the apartment lease is under my father’s name—he doesn’t have renters insurance either. All communication with the neighbor was done via email. Back in January, I paid for his medical bills and transportation costs that he sent me. The letter does not include any specific compensation demand at this time. I’m not sure what I should be doing at this point. I’ve tried looking for lawyers online, but most personal injury attorneys seem to represent plaintiffs, not defendants.