For over 2 decades, Philadelphia employment lawyer David Koller has been helping employees in Pennsylvania and New Jersey who have experienced discrimination, sexual harassment, wrongful termination and more.

For over 2 decades, Philadelphia employment lawyer David Koller has been helping employees in Pennsylvania and New Jersey who have experienced discrimination, sexual harassment, wrongful termination and retaliation at work.

Our Employment Lawyers Are Different

Trial Experience & Empathy

A lot of employment law attorneys advise their clients to settle their cases and avoid trial. We treat employment law cases differently because we’ve been in your shoes. Early in his career, firm founder David Koller suffered a debilitating knee injury and filed an ADA disability discrimination claim against his then-employer, a law firm in Philadelphia. This gives Koller Law a unique perspective and passion for pursuing justice. At Koller Law, clients can expect compassion, empathy and a willingness to pursue employment cases as far as possible – trial and appeal, if necessary. See our latest employment law results.

May 2026 Update: Our Latest PA Jury Trial Verdict Win – PA Federal Jury Awarded $203,500 to Our Client Who Was Fired After Going on Leave

Koller Law represents a dispensary employee who was terminated after he went on FMLA leave to recover from injuries sustained in a car accident.  Thereafter, our client advised his employer he was willing and able to return from FMLA leave; however, he never heard back. Our client was then fired in an email.  In the Complaint, we alleged that our client was discriminated against and his employer’s action violated the Americans with Disabilities Act and the Pennsylvania Human Relations Act.

On May 13, 2026, a Pennsylvania federal jury awarded a verdict in favor of our client for $203,500. This verdict is broken down into $25,000 for emotional distress, $78,500 in back pay and $100,000 in punitive damages.

March 2026 Update: Our Latest Employment Law Win in The Fourth Circuit Court of Appeals Has Significant Implications

Koller Law represents a former EOTech, LLC employee in her lawsuit alleging discrimination violations of Title VII, the ADEA, and the Maryland Fair Employment Practice Act (MFEPA). Before starting her job, Plaintiff signed an EOTech-drafted document that included language purporting to shorten the time she would otherwise have to sue EOTech for any disputes relating to her employment. The agreement is referred to as the Limitations Agreement.

EOTech moved to dismiss Plaintiff’s complaint, asserting it was untimely under the Limitations Agreement. The district court granted summary judgment to EOTech on all claims, concluding that the parties – through the Limitations Agreement – had validly shortened Thomas’s timeframe to sue and that the complaint was thus untimely. Plaintiff appealed the decision.

On March 4, 2026, the Fourth Circuit Court of Appeals held that employment agreements attempting to shorten the statutory time limits for filing claims under Title VII of the Civil Rights Act of 1964 and the Age Discrimination in Employment Act (ADEA) are unenforceable. The opinion vacated the district court’s grant of summary judgment in favor of EOTech, which had relied on a 180-day limitations clause in Thomas’s employment agreement, and remanded the case for further proceedings.

May 2025 Update: Our Latest Employment Law Win

Koller Law represents a former Philadelphia Police Lieutenant in his lawsuit alleging age discrimination against the City of Philadelphia. The Lieutenant’s supervisor made several ageist comments and statements and reassigned the Lieutenant to a less favorable squad with fewer opportunities for advancement and overtime pay. The City moved to dismiss the case before trial claiming that because the Lieutenant’s title and base pay did not change, he did not suffer an adverse employment action. The Trial Court agreed and dismissed the case.

We appealed, and after briefs and oral argument before the Third Circuit in early 2025, a panel of Appellate Judges ruled on May 14, 2025 that the Trial Court used the wrong standard to determine if the transfer could constitute enough employment related harm to proceed to a trial and reinstated the Lieutenant’s case. This opinion reaffirms the standard set in Peifer v. Bd. of Prob. & Parole, 106 F.4th 270 (3d Cir. 2024) – a prior precedent-setting opinion based on an appeal brought by Koller Law – that an employee need not demonstrate a significant, serious, nor substantial change to the terms and conditions of employment to succeed on a discrimination claim; only that they suffered “some harm” with respect to an identifiable term or condition of employment.

Koller Law won an appeal before the Third Circuit in the McCrorey case by citing another one of our own cases from the Third Circuit (Peifer) where a year prior, also after an appeal, briefing and oral argument, our firm set the standard on this important legal issue in employment cases of what is the proper standard for what constitutes an adverse employment action. View Law360 Article May 15, 2025.

June 2022 Update: Our Latest Employment Law Win

Koller Law Firm is representing 3 workers in a wrongful termination case against a car dealership in Monroe County, PA. The case involves our clients’ claim that they were terminated after refusing to report to work in violation of a government order that shut down all non-essential businesses during the 2020 COVID pandemic. Last month, a judge ruled that the case would go forward, denying the employer’s preliminary objections. This case expands the public policy exception to the at-will employment doctrine in PA and highlights Koller Law’s continuing efforts to push the envelope when it comes to employee rights. View the June 16, 2022 Opinion and Order.

Jury Verdict Against Main Line Health – Workplace Retaliation & Punitive Damages (Nov. 1, 2021)

Client was a nurse practitioner who reported misconduct of her supervisor, the head of a medical department at Main Line Health. She was then forced to resign after being threatened with suspension and termination. A federal jury found in the client’s favor and awarded punitive damages.

Major Federal Appellate Court Decision, Minarsky v. Susquehanna Co., Sexual Harassment Case (2018)

Despite getting an unfavorable decision, Dave Koller was not satisfied. He disagreed with the law, so he continued to fight for his client, a secretary who was sexually harassed by her supervisor over the course of years. In a landmark decision for employee rights, the 3rd Circuit Ct. of Appeals found in his client’s favor, holding that harassed employees can pursue their rights even if they don’t report the conduct or suffer an adverse employment action. The case settled shortly after the decision, and is cited across the country to advance rights of victims of sexual harassment.

Trial Award Against Online University – Race Discrimination & Wrongful Termination (June 2021)

Client was an African American woman who was terminated after reporting race discrimination by her supervisor. After reporting the discrimination, no investigation was conducted, in violation of policy.  Client was awarded back pay, front pay, emotional damages, and attorney’s fees and costs, plus interest.

Koller Law - In the News

Koller Law’s employment cases and founder David Koller have been featured in national and local media. Visit our employment law news page.

Washington Post logo
Woman fired during maternity leave gets payment from ex-employer (May 26, 2023)

These types of laws are very, very important and crucial for employee rights…but the laws are only useful if people pursue their rights -David Koller


Retired Police Officer’s Age Discrimination Claims Against City of Philadelphia Survive Motion for Summary Judgment (May 12, 2023)

The court system is the one place where we can hold employers accountable for any form of discrimination in the workplace…We look forward to trial and are hopeful for a positive outcome. -David Koller

Philadelphia Magazine logo
Woman Hits Philly School District With Sexual Harassment Lawsuit (March 22, 2023)

[E]mployers need to make sure that policies they have in place that say it is illegal to sexually harass someone at work are more than just words on paper and that the employers actually protect the victim employee. -David Koller

Employment Lawyers

Koller Law, LLC is a proven Employment Law Firm that has been providing representation and legal counsel for both employees and employers in Pennsylvania and New Jersey. As a graduate of the University of Pennsylvania and Villanova Law School, founder David Koller takes great pride in being an advocate and a voice for his clients – regardless of background, race, national origin, religion, lifestyle preference, or disability, in all aspects of employment matters.

Employment Law Is What We Do Best,
So Why Settle for Anyone Else

We provide representation and legal counsel to employees in Philadelphia, throughout Pennsylvania and New Jersey! Find out that we have the experience when it comes to employment law matters and schedule your consult today.

For Employees

When dealing with employment matters that involve sexual harassment, discrimination, or wrongful termination you need an experienced advocate in your corner.

For Employers

Koller Law Firm has helped all types of businesses all over Pennsylvania and New Jersey with employment matters, providing sound advice backed by years of experience.

Employment Law News & Updates

Follow along as we post news and updates about changes to the laws, or even cases we have won for our clients that had sought us out to provide them with expert legal counsel for their employment matters.

Major Sexual Harassment Law Update: Effective March 3, 2022, an amendment to the Federal Arbitration Act prevents forced arbitration in workplace sexual harassment lawsuits. Generally, employers prefer arbitration over trial, since arbitration tends to benefit employers over employees. This pro-victim law will change the way employers approach resolution of sexual harassment lawsuits. Read the White House briefing.

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