FORT LAUDERDALE, Fla.–(BUSINESS WIRE)– #Buick–Haig Partners LLC, a leading buy-sell advisory firm to auto retailers, served as the exclusive sell-side advisor to the Hill family on the sale of Hill Buick GMC to RDS Automotive Group and Hill Cadillac to Piazza Auto Group. Both dealerships are located in Newtown Square, Pennsylvania, a desirable suburb of Philadelphia. The transactions followed a competitive sale process that attracted significant interest from qualified buyers. For 35 years, the Hill