Ryan Portugal

Tanja H. Castro co-founded CastroHaase PLLC in 2012. She is included in the 2013, 2014, 2015 and 2016 editions of Washington, DC & Baltimore’s Best Lawyers. Her practice is focused in the areas of commercial real estate valuation and taxation issues, including property tax assessment appeals. She advises clients on minimizing their real estate tax obligations. Ms. Castro is experienced in reviewing, analyzing and obtaining reductions in the assessments of all types of commercial pro...

Richard E. Lear practices primarily in the litigation area emphasizing insolvency, Chapter 11, and creditors’ rights and bankruptcy issues. For 25 years, Mr. Lear has served as counsel for institutional lenders, franchisors, leasing companies and landlords in connection with individual and business Chapter 11 cases and in workouts. He has also counseled clients regarding the effect of bankruptcy and insolvency on proposed bond refundings, conventional loan refinancings and other transac...

Cathy Burgess leads the firm’s FDA Compliance and Enforcement Team and FDA practice. FDA-regulated entities benefit from Cathy's common-sense advice for achieving business objectives that avoid compliance and enforcement risks. With more than 30 years of extensive experience in the areas of CGMP regulation and product risk management, she provides strategic counseling and works with clients to identify and address potential risks throughout the product life cycle. Cathy advises clients ...

Jeremy B. Root is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships) and Real Estate Law. Jeremy B., who practices law in Fairfax, Virginia, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeremy B. is held by other top lawyers in the same geographic and legal practice area.

Drawing inspiration from General George S. Patton's motto, "Wars are not won by fighting battles; wars are won by choosing battles," I emphasize strategic thinking in my practice. My goal is to identify and steer clear of unnecessary conflicts, aiming to achieve business objectives with minimal confrontation. And if a battle does arise, I will represent you with ferocity and civility in the center of the ring. Learn more about my practice at Pillsbury , where I am committed to providing insig...

Whether helping her clients negotiate to draft commercial leases or working collaboratively to resolve complex family law issues, Leslye Fenton brings a uniquely powerful combination of sensitivity and tenacity to her work. As an attorney and trained mediator, Leslye believes in listening carefully to her clients to identify what drives their interests. This key, she says, unlocks the paths toward resolution, successful negotiation and, hopefully, beneficial outcomes. Her practice includes Fa...

Paul Brinkman is an intellectual property partner in the Washington, D.C., office of Kirkland & Ellis LLP. Paul focuses his practice on Section 337 litigation before the U.S. International Trade Commission. He has won 17 of 19 trials at the ITC and won or favorably settled many more prior to trial. Chambers described him as “great on his feet in court” with a “calm, practical and reasonable demeanor which works well with ITC judges.” His work for plaintiffs has led...

John M. Remy is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Labor Law - Management and Litigation - Labor and Employment. John M., who practices law in Reston, Virginia, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John M. is held by other top lawyers in the same geographic and legal practice area.

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

Louis Cohen is a senior counsel in the firm's Litigation/Controversy Department, and a member of the Appellate and Supreme Court Litigation Practice Group. He joined the firm in 1967. Mr. Cohen served as Deputy Solicitor General of the United States from 1986-1988, and focuses on US Supreme Court and other appellate litigation and corporations law. Mr. Cohen’s appellate practice has included more than fifty cases on the merits in the US Supreme Court and a large number of cases in the c...