Teri J. Diaz

Todd Gustin is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Todd, who practices law in Rockville, Maryland, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Todd is held by other top lawyers in the same geographic and legal practice area.

Victoria Lauterbach is a top attorney recognized by Best Lawyers in the practice area(s) of Energy Law. Victoria, 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 Victoria 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...

Amy E. Totten approaches every case by carefully considering all perspectives involved. As a former prosecutor, she understands the importance of thorough preparation for trial and thoughtful analysis, particularly when clients are facing significant, life-changing circumstances. Her ability to anticipate opposing arguments allows her to develop practical strategies tailored to each client’s situation. Over more than two decades in legal practice, Amy has handled thousands of matters ra...

Phillip Hummel represents developers, property owners, nonprofits (including hospitals, museums, and religious organizations), and senior living facilities on zoning, planning, entitlements, permitting, historic preservation, development impact taxation, and other land use matters across several Maryland jurisdictions. He counsels clients from due diligence through permitting, regularly appears before municipal, county, and state agencies, and brings significant litigation experience to Maryl...

Employers faced with complex employment and employee benefit claims count on Emily Seymour Costin to resolve disputes at the beginning stages with maximum efficiency. In addition to managing active cases, she advises clients on proven strategies to avoid future litigation. Emily leads the firm’s ERISA Litigation practice. She regularly represents employers, plan sponsors, insurers, and fiduciaries in litigation over benefits and fiduciary matters under ERISA, including those involving i...

Gifford R. Hampshire is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Land Use and Zoning. Gifford R., who practices law in Manassas, Virginia, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Gifford R. is held by other top lawyers in the same geographic and legal practice area.

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...

For over twenty years, Kim has consistently provided sound legal guidance to her clients through trusted and honest representation. Kim enjoys working with clients to reach an amicable resolution of their family law matters when possible, yet vigorously advocates for them when litigation becomes necessary. Kim served as clerk to the Honorable Jane Marum Roush of the Circuit Court of Fairfax County, Virginia. She then worked at a family law firm in Fairfax for several years and served as an ad...

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.