In the law firmsDLA Piper added Nathaniel M. Marrs to its finance practice as a partner.Marrs focuses his practice on corporate transactions, including the formation and structuring of private equity real estate funds and management companies, joint ventures and operating companies.He was previously with Latham & Watkins LLP.•Banner & Witcoff Ltd. added of counsel Mark A. Dalla Valle and associate Justin M. Philpott.Dalla Valle practices on patent prosecution and counseling, primarily serving clients involved …