Monica J. Mosby

Chicago Office
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Monica J. Mosby concentrates her practice in complex commercial, securities, and real estate litigation and dispute resolution.

Monica represents lending institutions and other businesses in commercial, guaranty and real estate loan litigation in both state and federal court. She assists clients with foreclosing various types of real property, including complex high-rise hotel, condominium and office projects, retail projects and single family homes; obtaining money judgments against individual and corporate guarantors; and successfully defending clients against lender liability claims. Monica also has extensive experience negotiating and preparing forbearance agreements, deeds in lieu of foreclosure and blanket settlement agreements. She also handles multi-state and multi-county mechanic lien claims on behalf of lenders, property owners and title insurance companies.

Monica’s practice also includes defending publicly traded companies and their officers and directors in securities class actions, directors’ and officers’ liability actions, Securities and Exchange Commission (SEC) investigations, government enforcement proceedings, corporate governance disputes and other complex commercial litigation.

During law school, Monica served as a judicial extern to the Honorable Ronald A. Guzman of the US District Court for the Northern District of Illinois. Upon graduation, she was awarded a Public Interest Law Initiative (PILI) Fellowship with the Federal Defender Program where she assisted in the criminal defense of indigent individuals prosecuted by the US Attorney’s office. Subsequently, Monica was named to the PILI Board of Directors as the 2004–2006 Fellow Representative. She was Katten Pro Bono Lawyer of the Year in 2012.

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  • Representation of client in obtaining a $34 million judgment in the US District Court for the Northern District of Illinois against guarantor of acquisition and infrastructure loan.
  • Successfully negotiated settlement of foreclosure suit against owner of multifamily residential property located in prestigious Hyde Park, Illinois, which netted client an investment return of three quarters of a million dollars in less than a year.
  • Successful resolution of more than 50 separate mechanic's lien cases pending in eight Illinois counties resulting from the bankruptcy of one of Illinois' largest residential home developers.
  • Defense of former officers and directors in shareholder class action suit alleging false or misleading statements made by the company during and following its 2005 Initial Public Offering (IPO). As part of her responsibilities, Monica managed an e-discovery document collection and review of more than two million pages of documents and supervised over 40 attorneys firmwide.
  • Defense of officers and directors in shareholder class action suit alleging false or misleading statements in public disclosures regarding actual value of loan portfolio at the time the statements were made.
  • Internal investigation of medical supply company pursuant to whistleblower alert alleging improper revenue recognition and financial disclosures.
  • Internal investigation of large banking client to provide response to informal request for documents and information received from the SEC.


Katten Muchin Rosenman LLP Pro Bono Service Award, Pro Bono Lawyer of the Year, 2012


  • JD, DePaul University College of Law, cum laude
  • BS, DePaul University

Bar Admissions

  • Illinois

Court Admissions

  • US District Court, Central District of Illinois
  • US District Court, Northern District of Illinois


Pro Bono Lawyer of the Year, 2012
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  • American Bar Association
  • Black Women Lawyers' Association of Greater Chicago, Inc.
  • Cook County Bar Association
  • Defense Research Institute
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