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A place of excellence ℠ 

About Us


Attwood | Gregg is a boutique law firm providing exceptional litigation and advice and counsel services for defendants and plaintiffs in California and other states.   We are zealous advocates for our clients.  We are creative.  We are unyielding in pursuit of your case.  We take pride in holding ourselves to the highest standard of excellence for those we represent.  Led by partners Mark Attwood and Jess Gregg, A|G’s practice is focused on high-profile, complex cases including employment, contract, class-action, ERISA, and general business litigation in federal and California state court.  Mark and Jess have a combined 46 years of experience in litigation and advising employers on workplace law issues. When it comes to employment matters, A|G represents clients ranging from single plaintiffs to Fortune 500 corporations.   Given A|G’s depth of experience, we are uniquely situated to understand the strengths, weaknesses and pressure points of employment law litigation and the particularities of your individual or business circumstances. 


Mark Attwood

(213) 985-2233

Mark Attwood is an experienced attorney on multiple levels.  He was a Principal of a national and premier AmLaw 100 employment law firm for more than 25 years. He has litigated cases for more than 35 years as a determined advocate for his clients.  This includes matters involving all varieties of discrimination, harassment, personal injury, wage and hour, disability, ERISA and race.  He provides seasoned employment law advice and counsel to a wide variety of clients ranging from Fortune 500 public companies, and privately held companies to individual executives, celebrities, non-profit institutions, and educational institutions.  His experience spans the manufacturing, retail, service, hospitality, law firm, construction, education, food, and entertainment fields and industries.  


Mark is particularly experienced with high-level executive matters including employment agreements and terminations.  He understands the complex issues and conflicts that can arise at the corporate board and executive levels.  He has served as the Board Chair of three separate organizations. He brings this knowledge base, practicality, and background to his practice. Mark consistently is recognized among his peers as a Super Lawyer® and a Best Lawyer®.
J.D. University of Utah, William H. Leary Scholar, 1985       
B.S. University of Utah College of Business, Magna Cum Laude, 1981


Jess Gregg

(213) 985-2233

Jess Gregg is an experienced trial attorney, having litigated a wide variety of civil cases including personal injury, employment, ERISA, art and entertainment, business litigation, intellectual property, class actions, and international law; representing plaintiffs and defendants.  Prior to forming A|G, Jess was a Principal of a national and premier AmLaw 100 employment law firm.  She litigates all varieties of employment law matters, including discrimination, harassment, personal injury, disability, ERISA, and wage and hour, including wage and hour class action defense.  Jess has a unique ability to understand her clients’ circumstances, to get to the heart of their cases and to represent them in a decisive manner. 


Jess is at home in the courtroom.  She is uncommonly creative.  Jess provides innovative employment law advice and counsel to her clients, who span the retail, manufacturing, entertainment, art, celebrity, insurance, construction, and technology fields.  She is solution oriented, and results driven.  She is personable and effective.  Jess is recognized as a Super Lawyer® by her peers.  
J.D. Stetson University College of Law, 2010         
B.A. University of Tampa, Honors, 2007


Joel Kelly

(213) 985-2233

Joel Kelly has an accomplished and distinguished record throughout his 40-year career employment law career as an expert in complex employment litigation, as a veteran trial lawyer, and as a skilled legal advisor on a variety of workplace issues. He is experienced in representing employers in multiple industries, including clients in retail, restaurants, hospitality, entertainment, and manufacturing.   Prior to joining A|G, Joel was a Principal of a national and premier AmLaw 100 employment firm for 30 years where he emphasized a preventative approach to avoiding workplace disputes. 


Having prevailed in several cases through the state and federal appellate courts, Joel is responsible for significant legal precedent under California state wage and hour law, and he is widely recognized as an authority in the area.  Joel’s additional expertise includes counseling and litigation on all phases of the employment relationship including employee discipline and termination, discrimination and harassment, class, collective and representative actions, PAGA, whistle-blowing, and unfair competition and protection of trade secrets. He has a unique ability to distill complex issues to get to the heart of the matter in a way that benefits his clients.  Based on his years of experience and pragmatic demeanor, Joel has earned respect among his colleagues on both sides of the practice, who often turned to him to strategize on their cases.


In addition to his litigation skills, Joel serves as a mediator.  With his deep understanding of employment law and his unique approach to resolving workplace disputes, Joel provides a skilled dispute resolution process as an alternative to the time, expense, and stress of litigation, including mediation in the area of complex wage and hour litigation.  In his role as mediator, Joel is often able to provide the parties with creative and meaningful solutions to resolve their disputes. 


Joel is a regular CLE instructor on employment law topics.  He has consistently earned the recognition of his peers as a Super Lawyer® and Best Lawyer®.


J.D. Georgetown University Law Center (1979).

A.B. Boston University (1975) 

Certificate in Dispute Resolution, Pepperdine University, Straus Institute for Dispute Resolution (2017)


Zoe Tremayne

(213) 985-2233

Zoe Tremayne is an experienced associate attorney having litigated a large range of civil cases representing plaintiffs and defendants in state and federal courts around the country. She is a meticulous and effective advocate for her clients. Zoe’s areas of expertise include employment, business litigation, false claims act, breach of contract, defamation and false light, class actions, appellate litigation, and intellectual property, including trade dress, trademark, copyright, trade secrets,
cease and desist issues, and the right to publicity.  Zoe uses this knowledge to provide comprehensive employment law advice and counsel to her clients.


Before joining A|G, she was an associate at a national and premier AmLaw 100 employment law firm, and prior to that position, practiced at a boutique high-stakes litigation firm.

J.D. University of Virginia School of Law, 2015
B.A., M.A., Physiological Sciences, University of Oxford, England, 2012

Our Services


  • Plaintiff Litigation

  • Defense Litigation 

  • Employer advice and counsel

  • Individual employment advice and counsel

  • Executive employment disputes

  • Wage and Hour disputes

  • Contract disputes

  • Commercial issues

  • Benefit claims disputes under ERISA 

  • Breach of fiduciary claims under ERISA

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