Fiona W. Ong




Fiona W. Ong

Phone: 410-843-3471
Fax: 410-752-8861

Fiona W. Ong defends employers in the areas of employment discrimination, wrongful discharge, and wage/hour regulation, both in court and before federal and state agencies.  She also provides advice to managers and human resources on a wide variety of personnel matters, and conducts training on harassment, reasonable accommodations, and other issues for both supervisors and employees. She prepares employee handbooks and personnel policies.  She assists government contractors in complying with affirmative action obligations.

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Fiona serves as General Counsel to the Maryland Chamber of Commerce and is a member of the Chamber’s Executive Committee and Board of Directors. Fiona also currently co-chairs the Maryland Chamber’s Employment Issues Committee, and has testified before the General Assembly regarding various employment bills.  She has participated in numerous seminars at the local and national level, including the annual conference of the National Asian Pacific American Bar Association, and the Maryland State Bar Association, as well as the Maryland Chamber of Commerce’s Employment Law Conference.

Fiona is the primary author of  “Chambers Global Practice Guide – Employment – U.S. Trends and Developments” and “Chambers USA Regional Practice Guide – Employment – Maryland,” and Lexology’s “Employment USA 2021 – Maryland.”  She is also the editor for the “Maryland Human Resources Manual,” a publication of the Maryland Chamber of Commerce and In addition, she has co-authored a number of articles for the Matthew Bender monthly “Labor and Employment Law Bulletin.” She was the revisions editor for “The Employment Law Deskbook” and “Labor and Employment Law Volume 10 General Employment Issues” published by Matthew Bender.

Before entering private practice, Fiona served as a law clerk to the Honorable Mary J. Mullarkey of the Colorado Supreme Court.

Practice Areas

  • Accommodations – Disability and Religion
  • Affirmative Action and OFCCP Compliance
  • Discrimination, Harassment and Retaliation
  • Employment Agreements and Restrictive Covenants
  • FMLA/ADA/Workers’ Compensation Leave Management
  • Human Resources Advice and Counsel
  • Independent Contractor Issues
  • Investigations and Corporate Governance
  • Personnel Policies, Procedures and Handbooks
  • Training
  • Wage and Hour Compliance


  • Chambers USA, 2017-present
  • BestLawyers, 2020-present
  • Super Lawyers, 2015-present
  • Acritas Star, 2017
  • Lexology’s “Legal Influencer” in U.S. Labor and Employment 2020 – Q1 and Q2, 2019- Q2, Q3 and Q4, 2018 – Q4
  • Recipient, NAPABA Best Under 40 Award


    • Maryland Chamber of Commerce

    – General Counsel and Executive Committee Member

    – Co-Chair, Employment Issues Committee

    • American Bar Association
      – Member, Section of Labor and Employment Law
    • Maryland State Bar Association
    • National Asian-Pacific American Bar Association
    • Society for Human Resources Management


  • Georgetown University Law Center, J.D. 1992
  • Princeton University, A.B., 1989
    – Member, Kappa Alpha Theta

Bar Admissions

  • Maryland and Colorado
  • United States District Court for the District of Maryland
  • United States District Court for the District of Colorado
  • United States Courts of Appeals for the 3rd, 4th, 10th, and D.C. Circuits

News And Publications


Fiona Ong was Featured in “If I Knew Then,” an Ongoing Series by Crain’s Baltimore

Fiona W. Ong named an Acritas Star

Fiona Ong Quoted in BBJ Article

Fiona Ong Appears On CBS Baltimore Station WJZ-13

Nine S&R Attorneys selected for Super Lawyers Annual List

Best Lawyers™ Recognizes Shawe Rosenthal Attorneys

Honor – Firm and Attorneys Recognized by Chambers USA: America’s Leading Lawyers for Business

Fiona W. Ong was quoted in an article, “Labor board’s handbook guidance eases employer concerns”

Fiona W. Ong was quoted in “What’s Working in Human Resources”

Fiona W. Ong was quoted in an article by Gloria Gonzalez, “Workplace safety regulation seen undermining opioids fight”

Fiona W. Ong was quoted in an article by Fred Hosier, “Medical marijuana user loses job offer: Is that discrimination?”

Super Lawyers Recognizes Shawe Rosenthal Attorneys

Fiona W. Ong was quoted in the article, “Trump administration’s overtime proposal scales back Obama-era plan”

Fiona W. Ong was quoted in a March 22, 2019 Bloomberg Law article, “Businesses face expanding harassment risks, liabilities”

Fiona W. Ong has been recognized by Lexology as the top legal influencer for employment in the U.S.

Fiona Ong Recognized by Lexology


Employment Law Deskbook

Volume 10, Labor and Employment Law

Maryland Human Resource Manual

Governor Hogan Announces Paid Leave Compromise Bill

DOL Overtime Rule Struck Down

Extraordinary Employee Excuses

Article- “Maternity and Parental Leave Policies: A Trap for the Unwary”

Article – “Discrimination based on sexual orientation: Not the “principal evil” but protected by Title VII nonetheless?”