ISO summer sublet or house-sitting

Hello! I am looking for a short-term, furnished summer sublet (or a house-sitting opportunity) that is an entire unit, not a room. My mother is visiting Pittsburgh for a month or so (July or August) with her two small dogs (12lbs each), and would love to find a place near Highland Park. She works at home, and the dogs are older and well-behaved. Dates are flexible. Thank you! Emma