MINNEAPOLIS ,MN— Winthrop & Weinstine, P.A., announced that Catherine “Trina” Sjoberg has joined the firm’s Real Estate Development & Transactions practice. Trina is a Board Certified Real Property Law Specialist with more than 20 years of experience representing real estate clients in a wide variety of matters. Trina represents developers, owners, operators, investors and lenders in a broad range of real estate matters, including the sale, acquisition, financing and development of real estate.