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Mark R Osherow

Mark R Osherow

Civil Trial Law and Construction Lawyer
Osherow, PLLC
Boca Raton, FL
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About Mark R Osherow

Attorney Biography

Mark R. Osherow is a Florida Bar Board Certified Specialist in Business Litigation with over 30 years of experience. He has practiced for most of those years in both state and federal courts throughout Florida. With significant trial and alternative dispute resolution experience, Osherow has taken countless depositions and served as first-chair in numerous trials, arbitrations and mediations. He serves as a legal advisor for his clients as they assess their business risks across a large segment of industry and service providers. 

Mr. Osherow was recently selected by his peers for inclusion in The Best Lawyers in America for 2019 in the field of Business Litigation. This is the sixth year in a row that Mr. Osherow has achieved this recognition. Mr. Osherow has also been included in the listing of the 2017 Top 100 Miami Area Super Lawyers and has been recognized in Super Lawyers for 13 years beginning in 2007.  

His practice encompasses a wide range of business and commercial litigation matters in a variety of areas, including trade secret and non-compete litigation, real estate, construction, fraud, business torts, securities, labor and employment, professional liability, and corporate, partnership and bankruptcy-related disputes. 

He is also well-versed in probate litigation and other matters related to estate planning and trusts. Osherow’s experience also includes consumer protection and class actions, products liability, actions involving judicial dissolution of corporate entities and partnerships, insurance coverage and ERISA benefits litigation issues. 

Osherow is well versed in federal practice, having handled cases involving Title VII, Section 1983, FLSA, ADA, FMLA Computer Fraud and Abuse (CFAA), and claims under many other state and federal employment related statutes, as well as claims involving many sorts of governmental liability claims. He has substantial experience with class action litigation particularly in the areas of consumer fraud class actions and collective actions under the FLSA. He is a Florida Qualified Arbitrator and a Florida Supreme Court Civil Mediator and has appeared before both FINRA and the American Arbitration Association. 

In addition to arbitration and mediation services, Osherow also provides services as an e-Neutral, including as an e-Discovery Special Master/Magistrate and eDiscovery Mediator. He is experienced with issues related to data breach, data security and cyber defamation. 


He holds an AV® Preeminent™ Peer Review Rating by Martindale-Hubbell, achieving the agency’s highest marks for both competency and ethics. He has also been selected as a “Florida Super Lawyer” by Super Lawyers magazine (2007-2019) and a “Florida Legal Elite” by Florida Trend magazine. Most recently, he was recognized in “The Best Lawyers in America®” 2014-2019. Osherow previously ran his own boutique litigation practice in Boca Raton, which was named a Go-To Law Firm® by Corporate Counsel magazine in 2007. 


A frequent presenter on a variety of legal topics, Osherow frequently presents on e-discovery for commercial litigators. 


Osherow has served on the Board of Directors for the South Palm Beach County Bar Association (SPBCBA) for 11 years, serving in several roles: President (2015-2016); President-Elect (2014-2015); Treasurer (2013-2014); and Secretary (2012-2013). He is a Past-President of the organization. He was featured in the Palm Beach County and Fort Lauderdale edition of Attorney at Law magazine, to which a link is provided on this site.  In November 2004, Osherow was recognized by Trial Lawyers Care for his pro bono work with the September 11th Victim Compensation Fund. 

He is a past chair of The Florida Bar Business Litigation Certification Committee and served two terms on The Florida Bar’s Standing Committee on the Unlicensed Practice of Law (UPL). Additionally, he was a member of the editorial board of The Florida Bar Journal and was a member and chair of a Fifteenth Judicial Circuit Grievance Committee. Osherow was appointed to The Florida Bar Board of Legal Specialization & Education after completing his term on The Florida Bar Federal Practice Committee, and is now serving an additional term through 2021. 

Practice Areas

Civil Trial Law (25%)
Construction Law (20%)
Employment Law (15%)
Business Law (10%)
Contracts (10%)
Bankruptcy (5%)
Insurance Law (5%)
Probate (5%)
Intellectual Property Law (5%)
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Résumé - Mark R Osherow

Bar Licenses

Florida State Bar
Member in Good Standing

New Jersey State Bar
New Jersey
Member in Good Standing

New York State Bar
New York
Member in Good Standing

Connecticut State Bar
Member in Good Standing

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Work Experience

Osherow, PLLC
Managing Member


Benjamin N. Cardozo School of Law - Yeshiva University
Benjamin N. Cardozo School of Law - Yeshiva University
Juris Doctor

Specialty Certifications

The Florida Bar Board of Legal Specialization and Education
Board Certified Specialist
Business Litigation
The Florida Bar Board of Legal Specialization and Education


Palm Beach County Bar

South Palm Beach County Bar Association

The Florida Bar

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Awards & Honors

Florida Bar Board Certified Business Litigation
The Florida Bar

Commercial Recognitions

Professional Involvement badge
Recognized for Professional Involvement
Lawyer Legion

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Attorney Endorsements

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Contact Mark R Osherow

Mark R Osherow
Osherow, PLLC
2101 Corporate Blvd NW Ste 410
Boca Raton, FL 33431
Office: 954-522-3636
Office: 561-257-0880
Fax: 561-405-3158
Cell: 561-789-1177

More Information

Bar License Information

Membership with The Florida Bar -

Mark R Osherow - Membership information with The Florida Bar - Find more information about Mark R Osherow on The Florida Bar website including the attorney's bar license status, eligibility status and ten year discipline history, if any. Check the Florida bar website to make sure the attorney is a member in good standing with the Florida Bar and currently licensed to practice law in Florida.

Specialty Certification Information

Certified in Business Litigation -

Florida Bar Board Certification in Business Litigation - Lawyers certified in Business Litigation by the Florida Board of Legal Specialization have demonstrated substantial involvement in this area of the law.

Under Rule 6-16.2, the term "business litigation" is defined as the practice of law dealing with "the legal problems arising from commercial and business relationships including litigation of controversies arising from those relationships."

Business litigation law includes "evaluating, handling and resolving such controversies before state courts, federal courts, administrative agencies, mediators, and arbitrators."

The term business litigation does not usually include marital and family law, routine collection matters, personal injury or workers' compensation.