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David Stein serves as Vice Chair of the firm's Litigation practice and he is an experienced business and employment litigator representing clients across a wide variety of industries. His dispute resolution practice includes pre-litigation counseling through trial, in state and federal courts, and in arbitration. An effective advocate who is aggressive when appropriate, David is listed as an Illinois Super Lawyers “Rising Star” and a Leading Lawyers “Emerging Lawyer.”

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In his business litigation practice, David represents both plaintiffs and defendants in actions asserting breach of contract, breach of warranty (including manufacturing and design defect product liability claims), defamation, breach of fiduciary duty (including director and officer liability, and partnership disputes), common law and statutory fraud, tortious interference and other business torts. In addition, David is often called upon to protect clients' valuable intellectual property, including trade secrets, copyrights and trademarks. When the situation demands quick action, David both prosecutes and opposes motions for emergency relief, including motions for temporary restraining orders and preliminary injunctions. Notably, David was recently involved in successfully obtaining injunctive relief that resulted in the return of stolen client trade secrets and other company property.

David’s employment litigation practice focuses on the defense of corporations in actions asserting employment discrimination and retaliation under Title VII, the ADEA, the ADA and other federal and state statutes, claims alleging violations of overtime laws including the FLSA and complimentary state statutes, as well as allegations of violations of the NLRA including unfair labor practices and retaliation against union organizing. David also routinely litigates matters involving the enforcement of non-competition and non-solicitation clauses.

David’s proven ability to synthesize the individual and distinct problems each case presents into a successful litigation strategy is appreciated by clients and colleagues alike. Prior to joining the firm, David spent several years with a Chicago litigation firm where he developed his litigation practice defending individuals and business entities in commercial and employment disputes.

Practice Areas


  • University of Illinois College of Law, J.D., summa cum laude, 2011; Order of the Coif, Pro Bono Notation
  • Washington University, A.B. 2007


  • Illinois
  • New York
  • Michigan
  • Supreme Court of the United States
  • U.S. Court of Appeals: 7th Circuit
  • U.S. Court of Appeals: 9th Circuit
  • U.S. District Court, Northern District of Illinois (Trial Bar)
  • U.S. District Court, Southern District of New York
  • U.S. District Court, Central District of Illinois
  • U.S. District Court, Northern District of Indiana
  • U.S. District Court, Northern District of Ohio
  • U.S. District Court, Eastern District of Wisconsin
  • U.S. District Court, Eastern District of Missouri
  • U.S. District Court, Eastern District of Michigan


Obtained preliminary and permanent injunction against former employee and his new company for alleged misappropriation of software source code and other trade secrets related to potential new product application which former employee worked on prior to separation from company. Mitutoyo America Corporation v. Cox and Fast CMM, LLC, No. 20-cv-03778 (N.D. Ill. Sept. 14, 2020).

Obtained complete dismissal of Trademark and Copyright Claims filed in United States District Court against a domestic consumer electronics company by competitor located in Southeast Asia. Client retained all rights to pertinent trademark registrations in the United States, and as a part of a global resolution of worldwide disputes related to the pertinent trademark and copyright, client also maintained trademark registrations in European Union jurisdictions which allowed client to significantly expand distribution footprint into European marketplace (June 2020). 

Achieved complete dismissal of arbitration claims alleging violations of the Federal RICO Statute, common law fraud, and breach of contract, where initial claims requested in excess of $450M in damages stemming from the bankruptcy and liquidation of the Plaintiff company; all claims initially filed in federal district court in the Southern District of New York and arbitration compelled based upon controlling contractual provision in pertinent contract documents (Sep. 2018).

Obtained a preliminary injunction against a former employee and after-market service provider where the Court found a likelihood of success as to the Plaintiff's Defend Trade Secrets Act, Illinois Trade Secrets Act, breach of contract and tortious interference claims related to the former employee providing company property to the after-market company for use in servicing the Plaintiff's customers. After entry of the injunction by the Court, the case quickly settled on favorable terms. Mazak Optonics Corp. v. Marlette, No. 17-cv-1023, 2017 U.S. Dist. LEXIS 124629 (N.D. Ill. Aug. 8, 2017).

Successfully defended a U.S. subsidiary of a Japanese company, a sister company and their Japanese parent from age discrimination claims alleged by a terminated manager with an initial demand of over $1M obtaining a complete dismissal of all claims. Kotegawa v. MAC Funding, et. al., No. 16-cv-4150 (N.D. Ill. Apr. 19, 2017).

After a bench trial, achieved a verdict in favor of a corporate shareholder in a partnership dispute where the opposing party argued for dilution of the corporate shareholder's equity interest due to a failure to timely fund progress payments of cash into the company, with the Court ruling that the corporate shareholder made all required payments and maintained its 50% equity interest. Bishop Technologies Ltd. v. DBCMF, LLC, et al., No. 14-cv-10329 (N.D. Ill. Feb. 28, 2017).

Obtained summary judgment against former employee under the Michigan Whistleblowers’ Protection Act where the Court held that the former employee failed to offer a disputed issue of fact that his former employer retaliated against him based upon the threat of reporting alleged illegal activity to the City of Detroit. The Court had earlier granted a motion to dismiss the former employee’s related claims holding that the former employee could not maintain both a statutory and a common law cause of action under the same theory. Yurk v. Applications Software Tech. Corp., No. 15-cv-13962, 2018 U.S. Dist. LEXIS 7244 (E.D. Mich. Jan. 17, 2018) (granting summary judgment); Yurk v. Applications Software Tech. Corp., No. 15-cv-13962, 2017 U.S. Dist. LEXIS 22804 (E.D. Mich. Feb. 17, 2017) (granting motion to dismiss common law claim).

Court granted a motion to dismiss, with prejudice, claims against the former parent company of the Plaintiff based upon the exclusive forum selection clause in the operative contract selecting South Korea as the venue for litigation. DMC Machinery America Corp. v. FFG DMC Co., Ltd., et al, No. 16-cv-269, 2016 U.S. Dist. LEXIS 152494 (N.D. Ill. Nov. 2, 2016).

In a three-panel arbitration before the American Arbitration Association, achieved victory for an optical development company where the arbitrators awarded nearly $4M finding that the purchaser improperly withheld monies due under the supply agreement which governed the relationship between the parties (July 2016).

Member of litigation team and lead drafter of Motions to Dismiss granted in District Court on behalf of private investigators in malicious prosecution and other improper prosecutorial conduct claims, with the District Court's ruling ultimately affirmed by the Seventh Circuit. Bianchi v. McQueen, et al., 818 F.3d 309 (7th Cir. 2016).

Obtained defense verdict at trial following partial summary judgment win while working with Chipotle's lead national counsel as to allegations of discrimination based upon race and national origin, and retaliation, among other related claims. Bob-Manuel v. Chipotle Mexican Grill, Inc., 10 F. Supp. 3d 854 (N.D. Ill. 2014).

Secured defense verdict in favor of multiple defendants on claims of defamation and intentional infliction of emotional distress, with the Court granting a directed verdict in the defendants' favor on breach of fiduciary duty claims. Svoboda v. Club Zobak, et al., 2011 L 286 (Circuit Court of Will County, Illinois, Dec. 12, 2014).

Illinois Appellate Court affirmed dismissal of defamation claims against former officer of large non-profit organization, relying upon the substantial truth of the statements made, innocent construction, opinion, and qualified privilege. Coghlan v. Beck et al., 2013 IL App (1st) 120891.

Court granted motion to reconsider and dismissed all claims against client alleging civil rights violations pursuant to Title VI, Section 1981, and state law, relying upon attenuated relationship between the defendant and plaintiffs to hold that the Court lacked jurisdiction over the defendant. Irving v. Chinese Christian Union Church, et al., No. 12-cv-8092 (N.D. Ill. 2013).



American Bar Association
Chicago Bar Association - Young Lawyers Section, Executive Council, 2013-2016
Legal Prep Academy High School, Associate Board, 2013-2016
Professional Activities
Legal Updates/Client Advisories
Three Critical Issues in the Area of Commercial Litigation and Dispute Management
Defending Breach of Contract Claims Arising from Supply Chain Disruptions: Significant disruptions in supply chains increased for many…
BIPA Claim Concerns for Illinois Employers
The Illinois Biometric Information Privacy Act (“BIPA”) continues to have employers wringing their hands over liability for the improper…
United States Supreme Court to Continue String of Arbitration Related Decisions
The United States Supreme Court remains active during this fall’s term in determining employers’ rights and obligations when companies…
Employment, Labor & Benefits Update - July 2017
SAVE THE DATE: September 28, 2017 - Annual Seminar On Thursday, September 28, 2017, the Employment, Labor and Benefits group will hold its…
Employment, Labor & Benefits Update - June 2017
Masuda Funai's Attorneys Speak on Employment and Benefits Matters Advertised in Crain's Chicago Business, Alan M. Kaplan and Frank J. Del…
Employment, Labor & Benefits Update - February 2017
Annual Seminar Reminder MFEM's Immigration Group will hold its 2017 Annual Immigration Law Update Seminar on Friday, February 24, 2017, at…
Masuda Funai 2021 Virtual Employment Seminar Series: Illinois Employers Must Comply With New Requirements When Using Non-Compete and Non-Solicitation Agreements
Illinois employers will be required to comply with drastically different requirements for non-compete and non-solicitation agreements…
2017 Employment, Labor & Benefits Group Complimentary Seminar
EMPLOYMENT, LABOR & BENEFITS GROUP COMPLIMENTARY SEMINAR Continental breakfast will be provided. Topics: The Trump Administration's…
Four Masuda Funai Lawyers Named to the 2021 Super Lawyers List
Masuda Funai is proud to announce that three lawyers have been selected to the 2021 Illinois Super Lawyers list and one lawyer has been…
Masuda Funai Ranked as Best Law Firm and Seven Attorneys Selected as Best Lawyer for 2021 by U.S. News & World Report
U.S. News & World Report and Best Lawyers recently released 2021 “Best Law Firms” rankings and gave Masuda, Funai, Eifert & Mitchell, Ltd…
David J. Stein Admitted to Practice Law in Michigan
David J. Stein, a Principal of Masuda, Funai, Eifert & Mitchell Ltd., has been formally admitted to practice law in the State of Michigan…
Masuda Funai Elects Two Equity Principals
Masuda, Funai, Eifert & Mitchell, Ltd. is proud to announce Asa W. Markel and David J. Stein as the firm’s newest equity principals…
Masuda Funai Hosts 2019 Litigation Practice Group Seminar
On April 18, 2019, Masuda Funai hosted its Litigation Practice Group seminar to assist clients in protecting their company assets, both…
Masuda Funai Showcases Excellence in Obtaining Complete Dismissal Of Arbitration Claims
Masuda Funai demonstrated its ability to resolve complex legal matters involving multiple practice areas and jurisdictions by obtaining the…
Litigation Snapshot 2017
Highlighting a Few of our Litigation Practice Group Successes Bankruptcy: Equipment Supplier’s Victory Against Bankrupt Debtor, December…
Masuda Funai Lawyers Named Super Lawyers for 2018
August 2017 Alan M. Kaplan, Employment & Labor Alan Kaplan, a Principal at Masuda Funai, was named an Illinois Super Lawyer for 2018…
David Stein Admitted to Practice Law in New York
On July 28, 2017, David J. Stein, of Masuda, Funai, Eifert & Mitchell Ltd., was admitted to practice law in all courts of the State of New…
The U.S. District Court for the Northern District of Illinois Awards Excellence in Pro Bono Service to Frank J. Del Barto and David J. Stein
PRESS RELEASE CHICAGO - Frank J. Del Barto and David J. Stein from Masuda, Funai, Eifert & Mitchell, Ltd. received awards for excellence…
Masuda Funai Showcases Excellence in Litigation Wins March/April 2017
CHICAGO – Masuda Funai's litigators continued their string of recent victories with two wins in employment-related litigation over the last…
Chapter entitled "Practical and Legal Considerations Prior to Conducting the Audit" - Illinois Institute for Continuing Legal Education's (IICLE) award-winning handbook, Conducting the Employment Practices Audit
"Have You Updated Your Employment Manual Recently? Employee Use of Text Messaging and Social Media Gives Employers Reason to Review Policies" - Chicagoland Chamber of Commerce, Business@Work Newsletter, November 2011
"Law Enforcement Efficiency or Orwell's 1984? Supreme Court to Decide Whether 'Big Brother' is Here at Last" - Recent Developments, U. Ill. J.L. Tech. & Pol'y 487, 2011


  • Illinois Super Lawyers - Rising Star, 2014-2022  
  • Leading Lawyers - Emerging Lawyer, 2015-2023
  • Awarded Excellence in Pro Bono Service by the U.S. District Court for the Northern District of Illinois, 2017
  • Recipient of the Chicago Bar Association "Young Lawyers Section Milton H. Gray Award for Outstanding Project Leadership" for work with the Legal Prep Charter Academy High School and its students and service on the school's Associate Board, 2013-2014
  • The Best Lawyers in America, 2021