Photo of Mark Theodore

Mark Theodore is a partner in the Labor & Employment Law Department. He has devoted his practice almost exclusively to representing management in all aspects of traditional labor law matters throughout the U.S. He is Co-Chair of Proskauer’s Labor-Management and Collective Bargaining Practice Group.

Some recent highlights of his career include:

  • Successfully defended client against allegations that it had terminated a union supporter and isolated another. T-Mobile USA, Inc., 365 NLRB No. 15 (2017).
  • Successfully appealed NLRB findings that certain of client’s written policies violated the National Labor Relations Actions Act.  T-Mobile USA, Inc., 363 NLRB No. 171 (2016), enf’d in part, rev’d in part 865 F.3d 265 (5th Cir. 2017).
  • Represented major utility in NLRB proceedings related to organizing of planners.  Secured utility-wide bargaining unit. Bargained on behalf of grocery chain.  After negotiations reached an impasse, guided the company through lawful implementation of five year collective bargaining agreement.
  • Coordinated employer response in numerous strike situations including a work stoppage across 14 western states of the client’s operations.

Mark has extensive experience representing employers in all matters before the NLRB, including representation petitions, jurisdictional disputes and the handling of unfair labor practice charges from the date they are filed through trial and appeal. Mark has acted as lead negotiator for dozens of major companies in a variety of industries, including national, multi-unit, multi-location, multi-employer and multi-union bargaining. Mark has handled lockout and strike situations, coordinating the clients efforts.

In addition, Mark has handled hundreds of arbitrations involving virtually every area of dispute, including contract interest arbitration, contract interpretation, just cause termination/discipline, benefits, pay rates, and hours of work.

As we previously reported here, in Chamber of Commerce of the U.S.A. v. Bonta, 13 F.4th 766 (9th Cir. 2021), a three member panel of the Ninth Circuit Court of Appeals resurrected California Labor Code Section 432.6, which prohibited employers from requiring California employees to agree to arbitrate their employment-related disputes.

In a new twist, however, the same Ninth Circuit

The California Secretary of State announced on July 22, 2022 that a measure to replace the California Labor Code Private Attorneys General Act of 2004 (“PAGA”) qualified as an eligible statewide ballot measure for the November 2024 General Election ballot.  PAGA allows “aggrieved” employees to file a representative action on behalf of themselves and other “aggrieved” employees and the state of California for certain alleged

As of Friday, July 1, non-hotel employers with full-time employees in West Hollywood must provide up to 96 hours of compensated time off (“CTO”) each year.  (Part-time West Hollywood employees must receive a prorated number of CTO hours based on their hours worked.)  These requirements already went into effect for hotel employers on January 1, 2022.

The CTO may be used for vacation, sick leave,

As we reported here, earlier this year, the California Supreme Court confirmed a relaxed standard by which employees can prove whistleblower retaliation under Labor Code section 1102.5 in Lawson v. PPG Architectural Finishes, Inc., 12 Cal. 5th 703 (2022).  Despite the newly affirmed and extremely high burden for employers to prevail against Section 1102.5 claims on summary judgment, the Third District Court of

California’s Occupational Safety and Health Standards Board has voted for the third time to readopt and revise the Cal/OSHA COVID-19 Emergency Temporary Standards (“ETS”), which lay out guidelines for testing, masking, and other COVID-19 prevention measures for employers to follow with respect to their employees and workspaces.  The most recent ETS took effect on May 6.  Most of the changes will have little impact on

As discussed in our previous blog, on April 1, 2022, Los Angeles Superior Court Judge, Terry Green, granted summary judgment in favor of individuals represented by D.C.-based nonprofit Judicial Watch, declaring Assembly Bill 979 (“AB 979”) to be unconstitutional and granting an “injunction preventing the expenditure of taxpayer funds on the implementation of the measure.”

AB 979 required publicly held corporations with a principal

California law requires employers to furnish a “safe and healthful” workplace to employees. Now that the line between “workplace” and “home” has been blurred for so many workers in the wake of the COVID-19 pandemic, the law has been unclear as to whether that obligation extends to an employee whose “workplace” happens to be their residence. In Colonial Van & Storage, Inc. v. Superior Court

A recent California Court of Appeal decision confirms that a California employer may be liable to an at-will employee who relocates to accept a new employment position, when the employer’s description of the kind or character of the job was misleading.  In the case Kenneth Allen White v. Smule, Inc., the Court of Appeal reversed a trial court decision to grant summary judgment in