Broad experience. Regional focus.

Belleville 618.234.9800
Edwardsville 618.656.2244

Charles M. Lock


Charles-M-LockCharles M. Lock is an Of Counsel with Mathis, Marifian & Richter (MMR), who focuses his practice exclusively on civil and criminal tax litigation and controversies pending before the Audit, Appeals, Collection and Criminal Enforcement divisions of the IRS. Charlie taught the Graduate Tax Studies and Tax Fraud Prosecutions class at Washington University School of Law for 20 years. He also served as a senior trial lawyer for the Chief Counsel’s Office of the Internal Revenue Service from 1967 to 1978.

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