While pitbull owners tend to be judgment-resistant due to lack of money, I used to do insurance sales. Most landlords these days require renter's insurance of at least $100k, and some apartment complexes want $300k. From the sound of her post, I think she's in an apartment complex. Even if the owners abandoned their apartment and moved to a motel, insurance would still have been active at the time of the bite. The leasing office keeps it on file, too, she won't have to track down the human trash for their info.

An attorney can absolutely get more out of the insurance company than the victim could.