Biography

Calvin is a trusted legal and business advisor to private equity groups, high-net-worth owner-operators, and corporate boards, providing strategic counsel on acquisitions, dispositions, governance, risk management, and litigation. As outside general counsel to numerous businesses, Calvin works closely with CEOs, boards of directors, and senior executives to structure and negotiate complex deals, mitigate risk, and ensure regulatory compliance. His deep understanding of mergers and acquisitions, private equity transactions, corporate litigation, and financial regulations allows him to deliver business-driven legal solutions that align with his clients' objectives.

With a background in finance and over two decades of legal experience, Calvin takes a holistic approach to his clients' business operations. He regularly advises private equity firms on the acquisition and disposition of portfolio companies, helping structure transactions that maximize value and minimize risk. High-net-worth owner-operators rely on his counsel for all aspects of running and scaling their businesses, from corporate structuring and shareholder agreements to compliance, commercial contracts, and governance. His experience extends across various industries, including financial services, real estate, manufacturing, and consumer products, enabling him to provide comprehensive legal support tailored to each client’s needs.

Calvin has represented numerous publicly traded companies, executives, and board members in high-stakes litigation, including securities fraud and class action defense. He successfully defended board members of an international military defense company in a shareholder dispute and represented the CEO and president of a national company in a $600 million fraud case the largest of its kind ever prosecuted in Missouri. He has also handled complex corporate restructurings, advising business leaders on optimizing their entities for growth, compliance, and long-term sustainability.

Prior to practicing law, Calvin worked in the financial industry. His background in finance gives him a unique perspective when advising clients on financial transactions, investment strategies, and risk management. He leverages this expertise to bridge the gap between legal strategy and business success, ensuring his clients are positioned for long-term growth.

With a reputation for delivering practical, results-oriented legal counsel, Calvin is a go-to advisor for private equity firms, high-net-worth business owners, and corporate executives navigating complex transactions, litigation, and regulatory challenges. His ability to integrate legal, financial, and operational strategies makes him an invaluable partner in driving business success.

Education

  • University of Tulsa College of Law  (J.D.)
  • Arizona State University  (B.S.)
    • Finance
    • Scholar Athlete

Admissions

  • Missouri
  • Illinois

Charitable and Civic Involvement

  • St. Louis Sports Commission (Board Member)
  • Saint Louis Art Museum (Corporate Advisory Board)
  • The St. Louis Museum of Transportation (Past Board Member)
  • Loyola Academy (Past Board Member)
  • Armstrong Teasdale United Way Campaign (Chairman, 2015)

Accolades

  • Missouri/Kansas Super Lawyers®, Rising Star (2015-2016)
  • NCAA National Champions, Arizona State University Men's Golf (1996)
  • NCAA West Regional Champions, Arizona State University Men's Golf (1995, 1998)
  • Pac-10 Champions, Arizona State University Men's Golf (1995-1998)

Background

Prior to joining to Armstrong Teasdale, Calvin was in private practice at another St. Louis area firm.

Before practicing law, Calvin was a NASDAQ Securities Trader for JW Genesis Financial Services, Inc. where he held a NASD Series 7, General Securities Representative License; NASD Series 55, Equity Trader Representative License; and a NASD Series 63, Uniform Securities Agent License. He also worked for ADM at the Chicago Mercantile Exchange.

Contact Us
  • Worldwide
  • Chicago, IL
  • Denver, CO
  • Edwardsville, IL
  • Jefferson City, MO
  • Kansas City, MO
  • Las Vegas, NV
  • Miami, FL
  • New York, NY
  • Philadelphia, PA
  • St. Louis, MO
  • Washington, D.C.
  • Wilmington, DE
Worldwide
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Chicago, IL
100 North Riverside Plaza
Suite 1500
Chicago, IL 60606-1520
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Chicago, Illinois
Denver, CO
4643 S. Ulster St.
Suite 800
Denver, CO 80237
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Denver, Colorado
Edwardsville, IL
115 N. Second St.
Edwardsville, IL 62025
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Edwardsville, Illinois
Jefferson City, MO
101 E. High St.
First Floor
Jefferson City, MO 65101
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Jefferson City, Missouri
Kansas City, MO
2345 Grand Blvd.
Suite 1500
Kansas City, MO 64108
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Kansas City, Missouri
Las Vegas, NV
7160 Rafael Rivera Way
Suite 320
Las Vegas, NV 89113
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Miami, FL
355 Alhambra Circle
Suite 1200
Coral Gables, FL 33134
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New York, NY
7 Times Square, 44th Floor
New York, NY 10036
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Philadelphia, PA
2005 Market Street
29th Floor, One Commerce Square
Philadelphia, PA 19103
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St. Louis, MO
7700 Forsyth Blvd.
Suite 1800
St. Louis, MO 63105
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Washington, D.C.
1717 Pennsylvania Avenue NW
Suite 400
Washington, DC 20006
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Wilmington, DE
1007 North Market Street
Wilmington, DE 19801
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Wilmington, Delaware