Mariah Leffingwell
About Mariah Leffingwell
Mariah Leffingwell is a lawyer based in Washington, DC and has been recognized in Best Lawyers: Ones to Watch® in America since 2026. Mariah Leffingwell is recognized in the following practice areas:
- Washington, District of Columbia
- Privacy and Data Security Law
- Technology Law
Current Firm: Clark Hill PLC
Education: Roger Williams University, J.D., graduated 2019
Location: Washington, DC
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
Frank G. Lamancusa is a top attorney recognized by Best Lawyers in the practice area(s) of Communications Law. Frank G., 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 Frank G. is held by other top lawyers in the same geographic and legal practice area.
Kendal handles domestic and cross-border transactions, including mergers and acquisitions, joint ventures and strategic alliances, as well as licensing, distribution and franchise matters. What do you focus on? Franchising With over 25 years of experience, I counsel companies expanding through master franchising, area development franchising, international franchising, management contracts, joint venture agreements, licensing agreements and product distribution arrangements throughout the wor...
Patrick J. Howley is a shareholder in the Firm’s Trusts & Estates Department. His practice focuses on estate planning for individuals and families, as well as representation of fiduciaries in the administration of estates and trusts. Mr. Howley counsels clients on the use of Wills, Revocable Trusts, Financial Powers of Attorney, Health Care Powers of Attorney and Living Wills to accomplish their estate planning objectives. He also advises on the use of advanced techniques designed t...
Amy Jeffress is a top attorney recognized by Best Lawyers in the practice area(s) of Criminal Defense: White-Collar. Amy, 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 Amy is held by other top lawyers in the same geographic and legal practice area.
Christine Keller advises a wide range of clients on all aspects of health and welfare plan design, administration, and funding including compliance with federal tax, ERISA, and other federal and state law requirements, plan and VEBA trust document drafting, participant disclosure, change in election issues, wellness program compliance, and claims and appeals. Her clients include employers, insurers, and service providers of all sizes. She draws on her prior IRS experience to provide practical...
Michael J. Neary is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Michael J., who practices law in Bethesda, Maryland, 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.
Swathi Bojedla is a top attorney recognized by Best Lawyers in the practice area(s) of Mass Tort Litigation / Class Actions - Plaintiffs. Swathi, 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 Swathi is held by other top lawyers in the same geographic and legal practice area.
Gregory Giammittorio represents private and publicly held companies in all stages of growth on a range of issues involving mergers and acquisitions, joint ventures, strategic alliances, venture capital, and public and private securities offerings. Mr. Giammittorio has recently worked on mergers and acquisitions for government services, telecommunications, energy, software, semiconductor, information technology, medical device, media, and life science companies. He has developed numerous acqui...
Conflict is at the core of many divorces and can produce volatile emotions. Divorcing clients appreciate the combination of strength and compassion Katherine brings to her cases, especially when substance abuse, mental illness, domestic violence or contested child custody issues are involved. Katherine firmly believes in putting the children first in every divorce situation and in trying to reduce conflict between divorcing parents. A skilled problem-solver, Katherine acts decisively on behal...
Matt Hjortsberg is skilled at assisting clients in managing complex problems from “black swan events” to complex legal issues and multi-party negotiations. He has extensive experience representing commercial contractors, subcontractors, design professionals and owners in disputes, including construction delay, impact and defect claims. Regardless of the nature of the dispute, Matt brings the same core skills to each matter to help clients mitigate and manage risk. An unusually qui...
Explore and Learn
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Reddit’s Lawsuit Could Change How Much AI Knows About You
by Justin Smulison
Big AI is battling for its future—your data’s at stake.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
Alimony Explained: Who Qualifies, How It Works and What to Expect
by Bryan Driscoll
A practical guide to understanding alimony, from eligibility to enforcement, for anyone navigating divorce
UnitedHealth's Twin Legal Storms
by Bryan Driscoll
ERISA failures and shareholder fallout in the wake of a CEO’s death.