AttorneyJohn William McKenzie● 115 total views
JM

John William McKenzie

Costin Marcus PLLC·Alexandria, VA·17 years licensed

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.

Claim profileContact attorney
Law school
Class of 2008
Bar admission
2008
State Bar of TX · No. 24065723
Office
908 King St Ste 330
Alexandria, VA 22314
Disciplinary
None on record
Clean since admission
JM

John William McKenzie

Costin Marcus PLLC
Alexandria, 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
Bar admission
2008
State Bar of TX · No. 24065723
Office
908 King St Ste 330
Alexandria, VA 22314
Disciplinary
None on record
Clean since admission
Career history

2 observed firms

Based on State Bar of Texas snapshots — each row is a firm the attorney was registered with at one of our quarterly pulls.

  1. Loewinsohn Deary Simon Ray LLP.AS OF MAY 2023
    Private Law Practice · Dallas, TX
  2. Costin Marcus PLLCAPR 2026 — PRESENT
    Private Law Practice · Alexandria, VA
Case data

Case data

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Practice & jurisdiction
Courts admitted
  • 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 Jun 2026