Vincent K. Shier Ph.D.

Matthew Glinsmann leads the employment-based residency – PERM Labor Certification team at Glinsmann Immigration. His practice includes representation of large and small corporations, families, and extraordinary ability individuals. Leading technology and service companies select Matthew as a trusted immigration partner because of his immigration experience and reputation. His deep understanding of business practices allows him to design immigration solutions that result in the highest r...

Carolyn Abbate is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Carolyn, who practices law in Arlington, Virginia, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Carolyn is held by other top lawyers in the same geographic and legal practice area.

Ronald C. Machen is a top attorney recognized by Best Lawyers in the practice area(s) of Securities Regulation. Ronald C., 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 Ronald C. is held by other top lawyers in the same geographic and legal practice area.

Chair of Brownstein’s National Tax Policy Group. Veteran of Capitol Hill who served for nearly a decade as Senate Finance Committee staff director. Creative strategist who finds legislative and regulatory solutions that save clients’ money. Russ Sullivan is one of the top tax attorneys and advocates in the country. When companies face risks in Washington, D.C., they turn to Russ to develop creative solutions that save their industry. For Fortune 50 companies, start-ups and nationa...

Joanne Jacobson is a top attorney recognized by Best Lawyers in the practice area(s) of Employee Benefits (ERISA) Law. Joanne, who practices law in Washington, District of Columbia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joanne is held by other top lawyers in the same geographic and legal practice area.

Bob Wellen, a partner of the firm, has practiced tax law for nearly 35 years. His practice involves planning, structuring and negotiating business transactions and representing taxpayers seeking private letter rulings from IRS and tax policy determinations from IRS and the Treasury Department and in controversies with IRS. He also serves as an arbitrator and as an expert witness in commercial disputes involving tax issues. Bob grew up in Jersey City, New Jersey. He graduated from Yale College...

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...

Michael J. Leotta is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Michael J., 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 Michael J. is held by other top lawyers in the same geographic and legal practice area.

Laurie L. Kirkland is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Laurie L., who practices law in Fairfax, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Laurie L. is held by other top lawyers in the same geographic and legal practice area.

Andrew B. Kolesar III is a top attorney recognized by Best Lawyers in the practice area(s) of Railroad Law and Transportation Law. Andrew B., who practices law in Washington, District of Columbia, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrew B. is held by other top lawyers in the same geographic and legal practice area.