Jonathan Zimmerman

Whether they are buying, selling or financing businesses, CEOs, business owners, and investors turn to Aaron Ghais to get deals done. Aaron specializes in representing mid-market companies that aspire to grow through acquisitions, and also helps business owners maximize value when they sell their companies. Clients benefit from his ability to lead them successfully through the M&A process using his creative problem-solving skills, well-honed business sense, and results-oriented style. A f...

Victor S. Chang is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Victor S., who practices law in Washington, District of Columbia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Victor S. is held by other top lawyers in the same geographic and legal practice area.

John's practice focuses on the representation of mutual funds, exchange-traded funds (ETFs), closed-end funds and business development companies (BDCs) and their independent board members. He advises clients on a range of matters, including the formation, operation, merger and liquidation of mutual funds, closed-end funds, ETFs, and BDCs. John has extensive experience working on transactions involving registered funds, such as adviser acquisitions, fund adoptions and product launches.

Linda E. Rosenzweig is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Linda E., who practices law in Washington, District of Columbia, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Linda E. is held by other top lawyers in the same geographic and legal practice area.

Kenneth W. Parsons is a top attorney recognized by Best Lawyers in the practice area(s) of Native American Law. Kenneth W., 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 Kenneth W. is held by other top lawyers in the same geographic and legal practice area.

Personal injury and medical malpractice victims, and those who have been injured by the federal government, turn to Karl Protil when they need a lawyer who has a 20 year record of winning such cases. Clients depend on Karl when the stakes are high, and when their situations call for a lawyer who is not afraid to take chances when it comes to bringing the much needed emotional and financial closure they deserve. Victims benefit from his unique technical skill-set which includes both deep knowl...

Rich’s practice focuses on antitrust and consumer protection law. Rich has extensive experience securing clearance for deals from the Federal Trade Commission (FTC) and Department of Justice (DOJ), navigating FTC and DOJ investigations and litigating antitrust and/or consumer protection claims. Rich began his legal career at the FTC, serving as a Staff Attorney and then as Senior Trial Counsel in the Bureau of Competition. At the FTC, Rich was a senior member of multiple trial teams, in...

Margaret is one of the four founding partners of Rock Creek Energy Group. She has over 18 years of experience counseling and representing a broad swath of electric industry participants on a wide range of federal energy regulatory and administrative litigation matters. She provides strategic counsel to investor-owned utilities, renewable and conventional generators, private equity and institutional investors, developers, and renewable energy providers on transactional, regulatory, and litigat...

Carol L. Ehlenberger is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Carol L., who practices law in Reston, Virginia, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carol L. is held by other top lawyers in the same geographic and legal practice area.

Henry Asbill is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Criminal Defense: General Practice and Criminal Defense: White-Collar. Henry, who practices law in Washington, District of Columbia, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Henry is held by other top lawyers in the same geographic and legal practice area.