Much Shelist named Courtney E. Mayster as the firm’s next managing partner. Her term will begin June 14.Mayster, a commercial real estate attorney who has been at Much for more than 13 years, currently serves as a member of the management committee and serves as the firm’s marketing partner.She was co-chair of the real estate group for nearly a decade. Mayster will continue to serve her clients — lenders, investors, buyers and sellers — through complex transactions.• Epstein Becker Green hired …