![O. Mahan](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
O. Mahan
Director/Board Member at
JOHN MARSHALL BANCORP, INC.
Net worth: 2 M $ as of 2026-06-29
Profile
O.
Leland Mahan is Director at John Marshall Bank since 2008.
Mr. Mahan is Independent Director at John Marshall Bancorp, Inc. since 2008.
Mr. Mahan is Member of Virginia State Bar.
Mr. Mahan is Member of The Virginia Bar Association.
Mr. Mahan is Senior Partner at Hall, Monahan, Engle, Mahan & Mitchell PA. Mr. Mahan is Member of Virginia Trial Lawyers Association.
Former positions include Member of Scouting America, Member of Kiwanis Club, President of Loudoun Small Business Development Center, President-Alumni Association at the University of Richmond School of Law from 1988 to 1990, President of Loudoun County Bar Association, and Member of American Legion.
Education includes an undergraduate degree from Virginia Polytechnic Institute & State University in 1961 and a graduate degree from the University of Richmond in 1964.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
| 2026-06-02 | 94,981 ( 0.67% ) | 2 M $ | 2026-06-29 |
O. Mahan active positions
| Companies | Position | Start |
|---|---|---|
| JOHN MARSHALL BANCORP, INC. | Director/Board Member | 2007-12-31 |
John Marshall Bank
 John Marshall Bank Regional BanksFinance Provides commercial banking services | Director/Board Member | 2008-05-31 |
Hall, Monahan, Engle, Mahan & Mitchell PA
 Hall, Monahan, Engle, Mahan & Mitchell PA Miscellaneous Commercial ServicesCommercial Services Hall, Monahan, Engle, Mahan & Mitchell PA is a private company based in Leesburg, VA. | Corporate Officer/Principal | - |
Virginia State Bar
 Virginia State Bar Miscellaneous Commercial ServicesCommercial Services Operates professional organization for lawyers | Corporate Officer/Principal | - |
The Virginia Bar Association
 The Virginia Bar Association Miscellaneous Commercial ServicesCommercial Services The Virginia Bar Association is a voluntary statewide organization of legal professionals committed to upholding the rule of law and enhancing the legal profession. The non-profit company is based in Richmond, VA. It offers members benefits such as access to exclusive content, registration discounts, and professional support. The association comprises groups including divisions, law sections, committees, and councils that foster networking, leadership, and expertise in various legal areas. Members can participate in continuing legal education programs, webinars, and social events. The association provides resources like publications, legislative advocacy, practice management tools, and a member directory. Through its foundation, it supports educational and service initiatives, promoting community, professional growth, and leadership within the legal community. | Corporate Officer/Principal | - |
Virginia Trial Lawyers Association
 Virginia Trial Lawyers Association Miscellaneous Commercial ServicesCommercial Services Operates as a lawyers association | Corporate Officer/Principal | - |
Former positions of O. Mahan
| Companies | Position | End |
|---|---|---|
University of Richmond School of Law
 University of Richmond School of Law Other Consumer ServicesConsumer Services Functions as a College/University | Corporate Officer/Principal | 1989-12-31 |
Boy Scouts of America
 Boy Scouts of America Miscellaneous Commercial ServicesCommercial Services Provides community development programs | Corporate Officer/Principal | - |
Kiwanis Club | Corporate Officer/Principal | - |
| ░░░░░░░░ ░░░░░░ | ░░░░░░░░░ ░░░░░░░░░░░░░░░░░ | - |
| ░░░░░░░ ░░░░░░ ░░░ ░░░░░░░░░░░ | ░░░░░░░░░ | - |
Training of O. Mahan
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
75
1st degree connections
14
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 14 |
|---|---|
Virginia Polytechnic Institute & State University
 Virginia Polytechnic Institute & State University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
University of Richmond
 University of Richmond Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Boy Scouts of America
Boy Scouts of America Miscellaneous Commercial ServicesCommercial Services Provides community development programs | Commercial Services |
Virginia State Bar
Virginia State Bar Miscellaneous Commercial ServicesCommercial Services Operates professional organization for lawyers | Commercial Services |
The Virginia Bar Association
The Virginia Bar Association Miscellaneous Commercial ServicesCommercial Services The Virginia Bar Association is a voluntary statewide organization of legal professionals committed to upholding the rule of law and enhancing the legal profession. The non-profit company is based in Richmond, VA. It offers members benefits such as access to exclusive content, registration discounts, and professional support. The association comprises groups including divisions, law sections, committees, and councils that foster networking, leadership, and expertise in various legal areas. Members can participate in continuing legal education programs, webinars, and social events. The association provides resources like publications, legislative advocacy, practice management tools, and a member directory. Through its foundation, it supports educational and service initiatives, promoting community, professional growth, and leadership within the legal community. | Commercial Services |
John Marshall Bank
John Marshall Bank Regional BanksFinance Provides commercial banking services | Finance |
Kiwanis Club | |
Hall, Monahan, Engle, Mahan & Mitchell PA
Hall, Monahan, Engle, Mahan & Mitchell PA Miscellaneous Commercial ServicesCommercial Services Hall, Monahan, Engle, Mahan & Mitchell PA is a private company based in Leesburg, VA. | Commercial Services |
Virginia Trial Lawyers Association
Virginia Trial Lawyers Association Miscellaneous Commercial ServicesCommercial Services Operates as a lawyers association | Commercial Services |
Loudoun Small Business Development Center
 Loudoun Small Business Development Center General GovernmentGovernment Loudoun Small Business Development Center is a non-profit company based in Leesburg, VA. | Government |
University of Richmond School of Law
University of Richmond School of Law Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Loudoun County Bar Association | |
John Marshall Bancorp, Inc.
 John Marshall Bancorp, Inc. Regional BanksFinance Provides bank holding services | Finance |
American Legion |
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