Okay, let’s tackle this. So Andrea M. has 20+ years of experience as a mediator/arbitrator, plus prior legal experience. She was an Associate Justice on the Massachusetts Appeals Court, which is a high-level position. Her education from Harvard Law School adds prestige. Skills like mediation, arbitration, dispute resolution are in demand. Location is Greater Boston, which is near a hub for legal and corporate clients. Mediators with her level of experience, especially in ADR, typically charge higher rates. Maybe around $300–$500 per hour? But considering her judicial background and Harvard degree, maybe higher. Some top mediators/arbitrators can charge $600+. Let’s check averages. Mediators with her background might average $400–$600. So I’ll estimate around $450