While I sympathize with your sentiment, if she signed a contract that says no dogs like hers, then she violated the contract and there is nothing to be done about it, lawyer or not.
Take the three hours necessary to read the fine print and prepare yourself before you pay some schmoe 300 bucks an hour to do it for you.
People always want to involve lawyers because they didn't use the diligence they should have. This keeps the lawyers happy but provides nothing in any way resembling relief from one's own lack of follow through.