Security Clearance Defense — Washington, D.C.
Security Clearance Attorney in Washington, D.C.
Matthew Thomas Law defends federal employees, contractors, and intelligence community personnel facing clearance denial, revocation, or suspension in the Washington, D.C. area. The DC office is at 1200 G Street NW, Suite 800 (by appointment only). DOHA hearings, DCSA appeals, NSA adjudications, and SOR response for cleared professionals across the capital region. Washington, D.C. practice is limited to matters and proceedings before federal courts and agencies.
Clearance Services
Services Available in Washington, D.C.
Security Clearance Defense
SOR response, DOHA hearings, NSA adjudications. The full clearance defense practice.
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SOR / SIR Response
Statement of Reasons and Supplemental Information Requests require immediate, strategic response.
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Security Clearance Appeals
DOHA administrative hearings and appeals before the DOHA Appeal Board or PSAB.
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NSA Clearance Defense
NSA runs its own adjudication process. Matthew has worked NSA cases extensively.
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SF-86 Consultation
Getting the SF-86 right the first time protects you through every reinvestigation.
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Suitability Determinations
Suitability and security clearance adjudications overlap but are governed by different rules.
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All Practice Areas
Every Service Matthew Offers in Washington, D.C.
Jurisdiction
Where Matthew Practices in Washington, D.C.
Matthew Thomas is admitted to practice in North Carolina and Maryland. His practice in security clearance matters, including DOHA hearings, NSA adjudications, and DCSA appeals, is limited to matters and proceedings before federal courts and agencies, which do not require local bar admission. He represents clients in the DC metro area, Northern Virginia, and Maryland within that federal practice scope.
The DC area is the center of the federal cleared workforce. DOHA hearings take place at the Defense Office of Hearings and Appeals. NSA adjudications run through Fort Meade. Matthew has appeared before both.
NSA Headquarters (Fort Meade, MD)
NSA adjudicates its own clearances through a separate process. Matthew has years of experience representing clients before the NSA and understands the process in detail.
DCSA / DOHA (Quantico, VA)
The Defense Counterintelligence and Security Agency and its Defense Office of Hearings and Appeals handle the majority of federal clearance adjudications. Matthew has appeared at DOHA extensively.
Pentagon / NCR Military Installations
Military members stationed at Pentagon, Quantico, or other NCR installations requiring court-martial, AdSep, or clearance defense. All military branches served.
Client Testimonials
What Clients Say
“Mr. Thomas got me out the most insane position and put me in a spot where my options did not leave me lost.”
R.G.
UCMJ Defense
“Mr. Thomas was able to do what I thought was impossible: get me retention in the Marine Corps.”
M.G.
Retention, Marine Corps
“Mr. Thomas was able to efficiently dismantle prosecution arguments so well that prosecutors were frantically looking through papers.”
G.P.
Full Acquittal
“All charges were dropped within a few months and I was able to retire with full benefits and honorable discharge.”
M.S.
USMC Retirement, 18 Years
“Mr. Thomas is the type of attorney who on your darkest day can greet you with a smile.”
H.L.
Military Defense
“Through unrelenting effort and professional skill, Mr. Thomas guided me through a legal battle lasting nearly a year.”
M.M.
Military Defense
“I would not have clearance or my career today without his knowledge and help.”
Verified Client
Clearance Defense
“Matt took an impossible situation and turned it into a second chance for our son.”
Verified Client
Family of Service Member
“Mr. Thomas got me out the most insane position and put me in a spot where my options did not leave me lost.”
R.G.
UCMJ Defense
“Mr. Thomas was able to do what I thought was impossible: get me retention in the Marine Corps.”
M.G.
Retention, Marine Corps
“Mr. Thomas was able to efficiently dismantle prosecution arguments so well that prosecutors were frantically looking through papers.”
G.P.
Full Acquittal
“All charges were dropped within a few months and I was able to retire with full benefits and honorable discharge.”
M.S.
USMC Retirement, 18 Years
“Mr. Thomas is the type of attorney who on your darkest day can greet you with a smile.”
H.L.
Military Defense
“Through unrelenting effort and professional skill, Mr. Thomas guided me through a legal battle lasting nearly a year.”
M.M.
Military Defense
“I would not have clearance or my career today without his knowledge and help.”
Verified Client
Clearance Defense
“Matt took an impossible situation and turned it into a second chance for our son.”
Verified Client
Family of Service Member
Common Questions
Frequently Asked Questions: Washington, D.C.
Matthew is admitted to practice in North Carolina and Maryland. His work in federal security clearance matters, including DOHA hearings, NSA adjudications, and DCSA appeals, is limited to matters and proceedings before federal courts and agencies, which he handles nationwide. For Maryland-specific state matters, he is admitted to practice in Maryland.
DCSA adjudicates the majority of federal security clearances and routes contested cases through DOHA. NSA maintains a separate adjudication office (the Access Appeals Panel) with its own adjudicators, policies, and criteria. If your clearance was granted by NSA or you work at NSA, your case runs through a different process. Matthew handles both.
Yes. Federal security clearance proceedings are federal administrative proceedings. Matthew represents cleared contractors, federal employees, and intelligence community personnel throughout the DC metro area, including Northern Virginia, Maryland, and DC itself. Travel is not an obstacle for DOHA hearings. For matters arising in Virginia and the District of Columbia, his practice is limited to matters and proceedings before federal courts and agencies, consistent with Rule 49.
DCSA/DOHA timelines vary by case complexity: SOR response typically has a 20-day reply deadline from receipt. If the case proceeds to a DOHA hearing, expect 6-12 months to a final decision from the date of the SOR. NSA cases can move faster. Matthew will give you an honest timeline assessment in your initial consultation.
Two Ways to Start
Ready to Discuss Your Case?
Security clearance matters in the DC area require immediate attention. Need ongoing support? The free 15-minute call is available now. Call or book online.
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