For more than 25 years, Michael Knoerzer has concentrated his practice upon the litigation and arbitration of disputes of interest to insurers and reinsurers, as well as providing advice to insurers and reinsurers in non-contentious matters. He has been recognized as a leading litigator of complex insurance and reinsurance disputes, having successfully first-chaired many complex and high dollar value matters, spanning numerous types of industry covers, including Bermuda Form, general liability, excess liability, trade credit, surety, life/health and reinsurance. He has appeared throughout the United States and in London. Michael's advice is also often sought in non-contentious matters related to insurance and reinsurance, including in the reorganization of the Panama Canal construction surety bonds. He also routinely gives advice concerning high value matters stemming from the financial crisis which relate to insurance and reinsurance relationships. 

Michael is widely recognized for the strength of his practice. In 2016, Chambers USA wrote of Michael, "Michael Knoerzer is highly regarded by peers as 'a tenacious, able insurance and reinsurance lawyer.' He advised clients on both contentious and non-contentious matters and has a range of expertise, particularly in the areas of Bermuda Form, excess and general liability." The International Who's Who of Insurance and Reinsurance Lawyers describes him as "definitely one to have on your side during a complex dispute." Previous editions of Chambers USA describe him as being "remarkably strong in all kinds of insurance claim defense work" with "an excellent reputation and an understated approach that gets outstanding results."

Michael is the Managing Partner of the New York office and is a member of the firm's U.S. Management Board. He is also a member of the firm's Global Management Board.

Michael is a Past Chair of the Excess, Surplus Lines, and Reinsurance Committee of the TIPS Section of the American Bar Association. He is a frequent speaker and author on issues pertaining to insurance and reinsurance, most particularly for ARIAS – U.S.