John is one of the most highly rated labor and employment attorneys in Maryland. For the better part of 30 years, he has represented individuals, labor unions, businesses and non-profits in any and all employment issues including termination, discrimination, sexual harassment, wage and hour, wrongful discharge, whistleblowers, and others in litigation. He regularly reviews severance agreements and does consultations for advice as well.  A veteran courtroom attorney, he has also represented clients in medical malpractice cases, copyright infringement, workers compensation and other matters that require a broad range of skills. John also acts as a mediator or neutral helping .

The Singleton Law Group regularly represents individuals and classes in civil rights cases involving police, fire, education and other government workers.  Numerous matters have garnered great press attention and are ongoing.  With regard to labor unions, John has represented organized workers in a multitude of industries negotiating union contracts and representing these organizations in all phases of their work and operations.