Jonathan D. Herpy, Sr.

Attorney Profile

Top Rated Business & Corporate Attorney in Elmhurst, IL

Hart David Carson LLP
360 West Butterfield Road, Suite 325
Elmhurst, IL 60126
Phone: 630-283-7244
Fax: 630-395-9451
Selected to Rising Stars: 2016 - 2021
Licensed Since: 2013
Practice Areas: Business/Corporate (60%), Securities & Corporate Finance (30%), Estate Planning & Probate (10%)
Attorney Profile

Jonathan David Herpy, Sr. has consistently been named one of the top private equity and corporate/business attorneys in Illinois under the age of 40 by Chicago Magazine and SuperLawyers between 2016-2020.

Jonathan has represented investors, sponsors, and managers of public and private pension plans, broker-dealers, investment advisers, custodians, and other financial industry service providers throughout the entire range of the investment spectrum and routinely provides market-leading advice on public/private offerings of equity and debt along with capital raising strategy.

In addition to the above, Jonathan has been touted as an industry leader for his sophisticated and efficient approach to structuring on- and off-shore investment vehicles, management entities, and investment transactions.

Of particular note, the private equity/family office team at Hart David Carson - lead by Jonathan - has developed an industry-leading approach to advising private equity and hedge fund principals with respect to establishing family offices and preserving and deploying capital, and has represented many of the investment management industry’s most prominent individuals and families.

In addition to his work in the financial industry, Jonathan represents athletes and coaches in the NFL, NBA, and MLB concerning issues involving contract disputes, public relations, private equity/family office structuring and wealth preservation.

Practice Areas
  • 60%Business/Corporate
  • 30%Securities & Corporate Finance
  • 10%Estate Planning & Probate
Focus Areas

Business Formation and Planning, Limited Liability Companies, Partnership, Sub-chapter S Corporations, Contracts, Business Organizations, Securities Law, Trusts


6 Years Rising Stars
  • Rising Stars: 2016 - 2021

About Jonathan D. Herpy, Sr.

Admitted: 2013, Illinois

Professional Webpage:


  • Avvo Clients Choice – 2015-2020
  • Avvo 10.0 Rating – 2016-2020 
  • Super Lawyer - Rising Star– 2016-2020
  • Thomson Reuters – Lead Counsel – 2016-2020

Bar/Professional Activity

  • American Bar Association   
  • Illinois
  • Chicago Bar Association
  • Illinois State Bar Association
  • United States Judicial Panel on Multidistrict Litigation
  • United States Tax Court
  • United States Bankruptcy Court, Northern District of Illinois
  • United States District Court for the Northern District of Illinois

Educational Background

  • B.A., Washington & Jefferson College 
  • Psychology, University of Moscow
  • J.D., Western Michigan University


  • Plaintiff is the creator of a highly complex and confidential proprietary trading model that implements select market strategies and executes trades on a high frequency basis. Plaintiffs involvement with Defendant began in 2005 during a phone call and grew to a partnership fostered during 2006. The partnership was founded in order to utilized the prop trading model under the terms that Plaintiff and Defendant would split any profits, that Plaintiff would be 'controller'/trading model programmer/inventor, and that Defendants role would be to bring in a steady stream of clients. While both Plaintiff and Defendant did in fact play those roles within the framework of the partnership, Defendant - outwardly to clients - denied Plaintiffs involvement in any facet of the creation or implementation of the trading model. Moreover, Defendant fraudulently and intentionally withheld client funds and partnership profits due and owing to Plaintiff. In an attempt to further alienate the Plaintiff from the trading community, the Defendant made multiple defamatory and false remarks in regard to Plaintiff as a ploy in order to push Plaintiff out of the partnership and retain rights to the trading model. As a result of the above stated actions, Plaintiff sustained significant and life-altering damage to his professional and personal lives. But for the actions of the Defendant, witnesses testified during trial that today’s valuation of the partnerships business portfolio would exceed a quarter billion dollars. Hart & David LLP, led by partner Jonathan D. Herpy, achieved a $13,900,000.00 settlement in favor of the Plaintiff., 2014
  • After months of highly contested negotiation, client was the recipient of a large trust due to the showing of services/aid rendered during the life of the deceased. Attorney Jonathan D. Herpy was able to negotiate an $850,000.00 settlemnet for his client., 2014


  • Negotiated merger between major education-sector tech companies Modern Teacher LLC and digedu Enterprises LLC. See Modern Teacher is an educational media company designed to support teachers and maximize teaching effectiveness in the digital world, while digedu partners with schools and districts to deliver a comprehensive technology program that meaningfully enhances teaching and learning. The result of the merger is an educational juggernaut within the Chicago community. Both sides saw the same goal in mind and sincerely focused on reimagining the end-user experience as it relates to the student. It is not an exaggeration to say that this merger should effect the way teachers teach and students learn for generations to come. Attorney Jonathan D. Herpy was able to negotiate and settle a full-scale merger within 60 days of initial client intake., 2015
Show More
Office Location for Jonathan D. Herpy, Sr.

360 West Butterfield Road
Suite 325
Elmhurst, IL 60126

Phone: 630-283-7244

Fax: 630-395-9451

Last Updated: 8/27/2020

Page Generated: 0.55941605567932 sec