J. Allen Mastanuno - Charleston, SC
Attorney at Mastantuno Law Firm, LLC
Criminal Defense Lawyers in Charleston, SC
171 Church Street Suite 160 Charleston, SC 29401 - 3137
- Free Consultation
Charleston Criminal Defense Lawyer
Updated: 06/01/2026
Areas of Practice
- Criminal Defense
- DUI
- Drug Charges
- Gun Charges
- Criminal Domestic Violence
- Assault
- Robbery
- Personal Injury
- Nursing Home Abuse
- Medical Malpractice
- Workers Compensation
Attorney Information
Overview
Allen was born and raised in Charleston, SC. He graduated from the College of Charleston (B.A., 2003) and from the University of South Carolina School of Law (J.D., 2007).
After graduation he clerked for the Federal Public Defender's Office in Charleston, SC gaining valuable experience in the Federal criminal system. From 2008 to 2010, Allen worked as a prosecutor for South Carolina's 9th Judicial Circuit which includes Charleston & Berkeley County.
He became the lead DUI prosecutor in the Berkeley County office and handled over a hundred DUI cases ranging from DUI 1st Offense to Felony DUI Involving Death. As a prosecutor, he was extremely active in the courtroom trying difficult and lengthy cases including such serious offenses as Armed Robbery and Burglary. While earning his reputation as a hard fighting trial attorney, he also assisted with and prosecuted hundreds of other cases ranging from Murder to traffic violations.
Allen is the sole managing member of Mastantuno Law Firm, LLC, and he personally handles every aspect of each client's case.
Education
-
Legal Education
-
University of South Carolina School of Law,
Columbia,
South Carolina, 2007
J.D.
-
University of South Carolina School of Law,
Columbia,
South Carolina, 2007
-
Non Legal Education
-
College of Charleston, 2003
B.A.
-
College of Charleston, 2003
Current Employment Position(s)
-
Owner
Past Positions
- Solicitor's Office for South Carolina's 9th Judicial Circuit, Prosecutor, 2008 - 2010
Classes and Seminars
- DUI Legal Training for Berkeley County Law Enforcement, 2009
Other Affiliations
- South Carolina Bar Association
- American Bar Association
- Charleston County Bar Association
- South Carolina Association of Criminal Defense Lawyers
Photo
Contact
171 Church Street
Suite 160
Charleston, SC 29401 - 3137
Phone: 843-720-3741
Fax: 843-577-0460
Email: Send a message
Website: http://www.mastantuno.com/
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