Okay, let’s tackle this. So Katherine Waters-Clark has an ABR certification, which is a reputable designation in the real estate industry. Her experience in condos and single-family homes is also valuable. Location is Winchester, Massachusetts, which is a moderate-cost area. According to the National Association of REALTORS®, ABRs typically charge between $50–$100 per hour. However, considering her expertise and certification, I’ll estimate her rate to be on the higher end of this range, around $125 per hour.