In the law firmsK&L Gates LLP added David L. Rieser as an of counsel in the firm’s environmental, land and natural resources practice.Rieser advises clients on legislative, regulatory, compliance and enforcement matters; corporate, commercial and real estate transactions; environmental insurance coverage; and the remediation of contaminated sites.He was previously with Much, Shelist P.C.•Edelson P.C. named two new partners, Roger J. Perlstadt and Eve-Lynn J. Rapp.Perlstadt’s practice focuses on appeals …