JM
John William McKenzie
John William McKenzie is a lawyer in Alexandria, VA who works for Costin Marcus PLLC. Court admissions include District of Columbia District Court, Sixth Circuit Court of Appeals. Licensed in Texas since 2008. Graduated from Indiana University School of Law in 2008.
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Law school
Bar admission
Office
Disciplinary
JM
John William McKenzie
Costin Marcus PLLCAlexandria, VA·17 years licensed
Claim profileContact attorney
John William McKenzie is a lawyer in Alexandria, VA who works for Costin Marcus PLLC. Court admissions include District of Columbia District Court, Sixth Circuit Court of Appeals. Licensed in Texas since 2008. Graduated from Indiana University School of Law in 2008.
Law school
Indiana University School of Law
Class of 2008
Bar admission
2008
State Bar of TX · #24065723
Office
908 King St Ste 330
Alexandria, VA 22314
Disciplinary
None on record
Clean since admission
Case data
Case data
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Practice, courts & credentials
Courts admitted6 total
District of Columbia District Court
Sixth Circuit Court of Appeals
Texas Eastern District Court
Texas Northern District Court
Texas Southern District/Bankruptcy Court
Texas Western District Court
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Last refreshed Aug 2026