"William is unflappable. He is able to negotiate and doesn't litigate for the sake of litigating. He really applies himself on a case by case basis." (Chambers HNW 2023)
"He has universal respect from the profession. Totally the calmest man in the world and nothing gets by him. He gets really good settlements quietly, which is important for high net worth clients." (Chambers HNW 2023)
"Will Massey combines his huge experience with a soothing bedside manner that gives clients total confidence." (Legal 500 2023)
"William Massey is an amazing head of department. He is one of the very finest divorce lawyers in London." (Legal 500 2023)
"William is a lovely lawyer. He is full of gravitas and good sense. He never argues a bad point and he fights hard for his clients" (Chambers UK 2023)
"He has a phenomenal calmness, is very holistic in his approach and his opinions really carry weight." (Chambers UK 2023)
Several sources praise William's calm demeanour, with one noting: "You couldn't find a lawyer much calmer than William; he's very thoughtful, considerate and measured in his approach." (Chambers HNW 2022)
"He is experienced in the field and is very focused on delivering a good service to his clients. He is detailed, focused and thorough in his analysis." "He has a top-flight intellect and isn't fazed by anything." "He is calm, thoughtful and very effective." Chambers UK 2022
"William Massey leads consummately from the front. Softly spoken, and urbane, he is one of the most charming doing the work. Behind this sits a formidable litigation talent and fine black letter lawyer. Clients love him and opponents know they have to be on their mettle." Legal 500 2022
"Tower of strength" William Massey heads the team that has an "exceptional range of lawyers from the most senior down to the most junior members of the team."
"William Massey and Alex Woolley are stand out. Calm, exceptionally bright as well as measured. I would recommend them to any client." Legal 500 2022
"He is outstanding, he is incredibly good, he is understated and exceptional. He has got gravitas and is a top-flight intellect." Family/ Matrimonial Chambers High Net Worth Guide 2021
"He's very good with clients and extremely personable. Anyone working with him is going to get sensible, extremely sound and detailed advice. He's an absolute pleasure to deal with.’’ Family/Matrimonial Chambers UK 2021 Guide
"William Massey is a top family law practitioner." Legal 500 2021
William Massey, head of the family and disputes team, is adept at advising high net worth clients on matrimonial finance matters. A source enthuses: "I rate William Massey very highly, and I would send conflict work to him. He's very good with clients, extremely personable, and you know that anyone is going to get sensible but extremely sound and detailed advice." Another interviewee says: "He is a pleasure to deal with; he is very commercially minded and a sensible litigator." Chambers High Net Worth 2020
William Massey "has become the monarch of the team," say peers. He is highly esteemed for advising high net worth individuals on the finance element of their matrimonial cases, and sources recognise that "he's just extremely polished and clients love him." Speaking of their experience working with Massey, one appreciative client reports: "He was very professional, very warm and very factual. At an extremely emotional time he was reassuring by giving the facts of what was going to happen. No question was insignificant for him." Chambers High Net Worth 2019
"A complete star: astute, incisive, creative and all-round excellent." Spear's
"Polished and accomplished.” Legal 500
"Faultless knowledge and expertise." Legal 500
"A highly effective litigator... incredibly reassuring, unflappable and calm under fire." Chambers UK
"Yet another class act at the practice.” Chambers UK
"William is an excellent lawyer: he is technically strong and has great client skills. He is a good negotiator and is pragmatic and sensible.” Citywealth
"Widely admired and very accomplished.” Chambers UK
"Calm and lovely with clients." Chambers UK
"Great to deal with, very approachable, knowledgeable and pragmatic." Chambers High Net Worth Guide
"Super lawyer. He is one of the nicest people in family law. He gets good clients as a result and he really knows what he is doing." Chambers High Net Worth Guide
"He also earns accolades for his ability to draw on expertise in tax, trusts and pensions when serving clients in family matters. William is described as ‘an able and urbane lawyer’ with whom ‘clients are in safe hands'." Chambers UK