David W. Zimmerman

Joseph Guarino handles dispute resolution in the construction sector, including major claims relating to the development of energy facilities, hotel complexes and commercial buildings. His experience includes all aspects of contract drafting and negotiations, counseling on contract administration, claim preservation and avoidance, and dispute resolution and litigation within the construction industry. Joe's broad experience includes tunnels, power plants, high-rise buildings, hospitals, deten...

Robert P. Trout has over 40 years' experience in civil and criminal litigation. His practice has concentrated primarily on complex commercial litigation and white-collar criminal defense, as well as the defense of administrative agency enforcement actions. He began his legal career at the Department of Justice, where he served for two years in the Criminal Division, followed by four years as an Assistant United States Attorney in Baltimore, Maryland. Mr. Trout served as Associate Deputy Indep...

Michele Bartoli Cain practices in the following areas of law: Personal Injury ; Medical Malpractice ; Dental Malpractice ; Automobile Accidents and Injuries Michele Bartoli Cain earned her B.A. cum laude at North Carolina State University , and was inducted ito the following Honor Societies: Pi Sigma Alpha; Blue Key and then Golden Chain. Based on her university-wide contribution, she was named Outstanding Senior Sorority Woman. While a law student at Wake Forest University , she excelled at ...

Christopher Allen is a top attorney recognized by Best Lawyers in the practice area(s) of Consumer Protection Law. Christopher, who practices law in Washington, District of Columbia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher is held by other top lawyers in the same geographic and legal practice area.

Alan S. Mark is a member of the firm’s Commercial Transactions , Financial Services , Real Estate , and Science & Technology Practice Groups. For the past 35 years, Mr. Mark has concentrated on corporate, commercial and real estate finance matters. He has served as outside counsel to numerous local, regional and national financial institutions, publicly traded biotechnology companies and hotel owners and operators. He has also served as outside counsel to information and telecommuni...

William M. Jay is a top attorney recognized by Best Lawyers in the practice area(s) of Appellate Practice, Bet-the-Company Litigation, FDA Law and Litigation - Patent. William M., who practices law in Washington, District of Columbia, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which William M. is held by other top lawyers in the same geographic and legal practice area.

Scott D. Museles is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships) and Corporate Law. Scott D., who practices law in Potomac, Maryland, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Scott D. is held by other top lawyers in the same geographic and legal practice area.

Timothy J. Jessell is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law. Timothy J., who practices law in McLean, Virginia, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Timothy J. is held by other top lawyers in the same geographic and legal practice area.

Mark E. Shaffer is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Litigation - Construction and Litigation - Real Estate. Mark E., who practices law in McLean, Virginia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mark E. is held by other top lawyers in the same geographic and legal practice area.

David Schertler is widely recognized as one of the top white–collar criminal defense attorneys in the Washington area and nationwide. He founded Schertler & Onorato, LLP, in 1996 and has built the firm’s reputation as a premier litigation boutique through his broad experience with criminal and civil investigative and trial matters and the results that he has achieved for his clients. Mr. Schertler is known for his skilled and tenacious representation of individuals and entitie...