John Patrick Mahoney

PRO

John Patrick Mahoney

also known as John P. Mahoney

4.8
64 reviews
This is an aggregated review score of Avvo and Lawyers.com reviews.
Rating: 10.0

Licensed for 32 years

Employment and labor Lawyer at Washington, DC
Practice Areas: Employment & Labor, Government

Ronald Reagan Building & International Trade Center, 1300 Pennsylvania Ave., NW, Suite 700, Washington, DC

Virtual Consultation Available

About John

Biography

Practice Areas

2

Practice Areas

Employment and Labor 50%

50%
Government 50%

50%

Fees and Rates

We have not found any cost information for this lawyer

Awards

Client's Choice
Client's Choice
2023 2022 2021
...
+ 1
AV Preeminent Peer Review Rating

Licenses

Licensed in District of Columbia for 31 years

State: District of Columbia

Acquired: 1994

Good Standing

Lawyer disciplined by state licensing authority in 2016

Licensed in Maryland for 32 years

State: Maryland

Acquired: 1993

Active

Lawyer disciplined by state licensing authority in 2024

Location

John P. Mahoney, Esq., Attorney at Law

Ronald Reagan Building & International Trade Center, 1300 Pennsylvania Ave., NW, Suite 700, Washington, DC, 20004

attorneymahoney.com

Online Presence

Other places you can find John online.

John Patrick Mahoney's Reviews

Showing 1 - 5 of 8 reviews | Character & Conduct

Posted by anonymous | February 26, 2022 | Hired Attorney

Initial Consult Superb

Attorney Mahoney's initial consultation was truly superb. His high-caliber knowledge and experience was quite evident, and his ability to quickly discern the key issues was amazing. Consummate professional. Hard-working. Highly intelligent. This is your attorney.

Posted by anonymous | February 17, 2022 | Hired Attorney | Lawsuits & Disputes

Reviewing Melissa Lolotai, Esquire

Hi Melissa: Thank you for accepting my case and living up to the expectations presented by Attorney Mahoney. You made me feel comfortable speaking with you, trusting the guidance you provided, and your honesty went a long way. I would definitely recommend you to anyone who is looking for an attorney ...in your area of practice. Once again, thank you for the work, time, and effort you put into resolving my case. Client F. P.

Posted by Tauave | April 21, 2021 | Hired Attorney | Administrative Law

Thankyou note

Dear Melissa, I wanted to say thank you for helping me repeal a decision of the Administration Judge on my case here in Pago Pago, American Samoa. And I hope for a better outcome or a win-win situation for both parties. You did it so fast and quickly. I was completely dazzled by your communication s...kills and courage in your response. I cannot thank you enough for the services that you have rendered for a few days at the struggle that I have experienced for the last five uneasy years of my life. I wanted to thank you for the excellent work you did as my attorney. I know you have a lot of clients, because of your prompt responses services and attention to detail really meant a lot to me. As a Minority Veteran and Pacific Islander, I am blown away by your integrity, knowledge about my case, especially on my unique situation. And all the hard work you did on my behalf in just a few days. I will always be grateful for all of your efforts. You worked tirelessly to ensure the best possible outcome on my behalf, and I can't wait for the outcome. I will never forget what you have done to make sure I was given a fair hearing.

John Mahoney

Replied last April 21, 2021

Thank you for your kind words. It has been a pleasure working for you, and I look forward to continuing to work with you as we proceed with your complaint.

Posted by Duane | February 09, 2021 | Hired Attorney | Employment & Labor

Appreciation

I want to thank you so much for your availability, follow-up, and especially the attentive and prompt replies have been invaluable, John Mahoney. He listened carefully as I laid out my situation, provided me an initial assessment of my case, and reassured me that I have a lot of protections in place ...under Federal law and policy. Having never experienced on going, everyday discrimination in the workplace, which has, been affecting my health, well-being. and exacerbated my PTSD.I had no idea how to handle discrimination claim, and the feeling of going into it alone was very intimidating I reached out to a number of law firms, and consulted with an attorney in a different firms who just said, "file an EEO complaint," or talk to your union and they did not seem in the least bit interested in taking on my case. He described the way ahead clearly. I cannot describe the feeling of relief that I have, knowing that I have experienced Federal Labor law Attorney to help me navigate the process. I am no longer all alone in fighting an extremely stressful and emotionally draining situation. I want the discrimination to stop, and the situation to be resolved fairly and quickly, and John Mahoney gives me every confidence that outcome will transpire.

John Mahoney

Replied last February 09, 2021

Thank you so much for your kind words! It is a true pleasure to represent you. We take pride in going to battle for our clients.

Posted by anonymous | April 04, 2019 | Employment & Labor

Government scientist who needed a federal employment attorney

I contacted John Mahoney, Esq., a partner in the law firm of Tully Rinckey, for legal advice involving a federal employment problem. My consultation with Mr. Mahoney occurred long after I had been interviewed regarding allegations made against me, a significant number of which were false. I should ha...ve contacted Mr. Mahoney as soon as the allegations emerged, but I trusted in my Agency to conduct a fair, objective, and thorough investigation. Instead, responsible management officials were using the opportunity to reduce my stature, duties, and responsibilities, as well as to degrade my work environment. Mr. Mahoney explained how he could assist me and immediately started to protect me with his in-depth knowledge of federal employment law. Over time, as my Agency retaliated against me for standing up for my rights and exercising my legal defense, Mr. Mahoney navigated me through a labyrinth of legal venues involving my Collective Bargaining Agreement rights, the Office of Special Counsel, the Merit Systems Protection Board, and the Office of Inspector General for my Agency. Without Mr. Mahoney’s guardianship, I believe my Agency would have successfully “steamrolled” me into a significantly diminished position within my Agency and in my professional community of scientists, all the while engaging in violations of law (some repeatedly), harmful errors, and procedural misconduct against me. Throughout the increasingly complex evolution of my case, Mr. Mahoney always respected my contributions to my legal defense, which is very gratifying from one professional to another, as well as my wife’s concerns. As the harm against me, and by extension my wife, increased, Mr. Mahoney repeatedly made sure the path forward contained “reality” checks to ensure we were investing our resources in the most effective way possible. The law is complex and many aspects of a case that might appear “unfair” or “unscrupulous” are in fact violations of law. As a career federal employee who concentrated on my work objectives, I had only a rudimentary understanding of what my rights were and the limited personal wealth from my wife’s and my personal finances. My only chance of being treated fairly by a large powerful Agency—funded by taxpayer money—was to find a guardian like John Mahoney who has an extensive understanding of the law and is a unflinching guardian of his clients. Incredibly, I talked to such a person on December 23 and retained him on the 26th, which shows the extent to which John Mahoney is a passionate advocate for his clients.

John Mahoney

Replied last April 04, 2019

Thank you so much for your kind words! It is a true pleasure to represent you. We take pride in going to battle for our clients.

See All Client Reviews

John Patrick Mahoney's Lawyer Endorsements

Endorse John
Melissa L. Z. Lolotai headshot
Melissa Lolotai

Employment and labor lawyer | Mar 31

Relationship: Co-worker

"John is an expert in this field and highly respected among peers."

Michael Denis Mierau Jr. headshot
Michael Mierau

Employment and labor lawyer | May 08

Relationship: Co-worker

"I endorse this lawyer. John Mahoney is a leading expert in employment law. He cares deeply about the needs of his clients and uses his expertise to ensure the best possible outcome for them."

Letha Ann Miller headshot
Letha Miller

Employment and labor lawyer | Apr 29

Relationship: Co-worker

"John is a great attorney and wealth of information on federal employment legal matters."

View All Endorsements
Steven L. Herrick headshot
Steven Herrick

Employment and labor lawyer

Mathew B Tully headshot
Mathew Tully

Military law lawyer

Experience

Rating:  10.0 (Superb)

Professional misconduct

This lawyer was disciplined by a state licensing authority in 2024.

Reciprocal - Suspension issued in MD, 2024

updated on 05/13/2025

This means that the attorney's misconduct in another state, or jurisdiction, also violated the rules for practicing law in Maryland.

Informal Admonition issued in DC, 2016

updated on 09/14/2016

An admonition means an attorney did something wrong but may still practice law. The Bar gives the lawyer an admonition in hopes that he or she will not repeat the behavior.

Honors

2021

Federal Employment Lawyer of the Year in Washington D.C., Corporate INTL

2021

Federal Employment Law - Lawyer of the Year in Washington D.C., Global Law Experts

2021

Featured Attorney, Lawyers of Distinction

2021

Top Attorneys, National Law Journal

2021

Top Lawyer, American Lawyer

2021

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2020

Client’s Choice Award, Avvo

2020

Federal Employment Lawyer of the Year in Washington D.C., Corporate INTL

2020

Federal Employment Law - Lawyer of the Year in Washington D.C., Global Law Experts

2020

Top 100 Attorney, America's Top 100 Attorneys

2020

Top Lawyer, American Lawyer

2020

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2019

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2019

Top Attorneys, National Law Journal

2019

Top Lawyer, American Lawyer

2018

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2018

Top Lawyer, American Lawyer

2017

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2016

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2015

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell

2014

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2013

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2012

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2011

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2010

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2009

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2008

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2007

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2006

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2005

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2004

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

2003

AV Preeminent 5.0 out of 5 Peer Review Rated, Martindale-Hubbell®

Work Experience

2014 - Present

Principal, The Law Firm of John P. Mahoney, Esq., Attorneys at Law

2009 - 2014

Partner, Tully Rinckey, PLLC

2009 - 2014

Chairman of the Labor & Employment Law Practice Group, Tully Rinckey, PLLC

2003 - 2008

Managing Partner, Mahoney & Mahoney, LLP

2000 - 2003

Senior Associate, Shaw, Bransford, Veilleux & Roth

1992 - 1999

Attorney, Passman & Kaplan, PC

Associations

American Bar Association

Member

Metropolitan Washington Employment Lawyers Association

Member

2009 - 2014

District of Columbia Bar, Labor and Employment Law

Co-chair

2003 - 2004

District of Columbia Bar, Labor and Employment Law

Past Chair

Sample of Legal Cases

UK v. Secretary, Dep’t of the Army, EEOC Case No. 531-2011-00095X (Shubow, Admin. J. Mar. 31, 2015)

ATTORNEY MAHONEY'S CLIENT AWARDED NEARLY $330,000 BY THE EEOC:

Cohen v. Department of Homeland Security (ICE), MSPB Docket No. SF-0752-12-0427-I-1 (Jun. 19, 2014)(nonprecedential)

MSPB Mitigated Client's Removal to 90-day suspension with backpay, benefits, & fees

Hamilton v. Donley, Sec'y, Dep't of the Air Force, EEOC Request No. 0520130469 (Dec. 20, 2013)(Settled May 14, 2012)

Attorney Mahoney's Client Awarded Approximately $1,000,000, plus removal canceled and returned to LEO duty with a promotion.

O'Keefe v. Donahoe, Postmaster Gen., United States Postal Service (Southwest Area), EEOC Appeal No. 0120130848 (Jun. 11, 2013)

EEOC Ruled Attorney Mahoney's client was discriminated against and ordered status quo anti relief, compensatory damages and fees..

Hussey v. United States Department of Agriculture, MSPB Docket No. DA-0752-10-0130-A-1 (Jan. 6, 2011).

Attorney Mahoney's Client's Removal Appeal Settled $45,000 in reasonable attorneys’ fees based upon the successfully enforced settlement.

Farrell v. Dep't of Treasury, EEOC Petition No. 0420070019 (Oct. 24, 2008)

Attorney Mahoney's Petition to Enforce Previous EEOC Decision Granted in successful SES nonselection EEOC case

Johnson v. Johanns, Sec'y, USDA, EEOC CASE No. 520-2006-00120X (EEOC NYDO, BAO, Default Judgment Sanctions Or. Jan. 22, 2007)

Attorney Mahoney Secured Full-Relief Default Judgment Sanctions/Full Relied in Novel Removal EEOC Case

See The Washington Post, Mar. 8, 2006, The Federal Page.

Settled Client's claims of sexual harassment, gender discrimination, and retaliation against FEC

See the Gazette Newspaper June 3, 2005

Attorney Mahoney Settled Client's EEO Disability Discrimination Case v. NIH, NCI

Cornyn v. Department of the Treasury, MSPB Docket No. DC-0351-02-0576-I-1 (Sep. 30, 2003)

Attorney Mahoney Successfully Represents the U.S. Department of the Treasury in MSPB RIF Appeal

Farrell v. Snow, Sec'y, Dep't of the Treasury, EEOC Appeal No. 07A20043 (May 5, 2003)

Attorney Mahoney WIns EEOC SES Nonselection Case for Federal Employee

Flythe v. Caldera, Sec'y, Dep't of the Army, EEOC Appeal No. 01972258 (2000)

Attorney Mahoney won a finding of discrimination and an award of full relief, with backpay and compensatory damages in excess of $100,000

VanWersch v. Department of Health and Human Servs., 197 F.3d 1144 (Fed. Cir. 1999)

Attorney Mahoney Wins Novel Due Process MSPB Appeal for Class of Disabled Federal Employees

Dong v. Smithsonian Institution, 943 F. Supp. 69 (D.D.C. 1996)

Attorney Mahoney won this case of first impression as the first case awarding compensatory damages under the Privacy Act, 5 U.S.C. § 552a

Wheeler v. District of Columbia (D.D.C. Feb. 10, 1995)

Attorney Mahoney Won a Class Action in D.D.C., receiving a multi-million dollar backpay award for all retired U.S. Park Police

Dong v. Smithsonian Institution, 125 F.3d 877 (D.C. Cir. 1997), reh'g den., No. 96-503 (1997), cert. den., 524 U.S. 922 (1998)

42 U.S.C. Section 2000e-16 amended to cover Smithsonian Institution

See More Legal Cases

Education

1993

Catholic University of America

JD - Juris Doctor

1990

Assumption College

BA - Bachelor of Arts

Speaking Engagements

2009

D.C. Bar Association

How to take an effective deposition- CLE Attendee

Publications

2011

National Law Journal What Rights to Privacy Do Federal Employees Have?

N/A

National Employee Rights Institute Federal Employees Legal Survival Guide

Languages

English

Spanish

Portuguese

Activity

Avvo Rating

Our Rating is calculated using information the lawyer has included on their profile in addition to the information we collect from state bar associations and other organizations that license legal professionals. Attorneys who claim their profiles and provide Avvo with more information tend to have a higher rating than those who do not.

What determines Avvo Rating?
  • Experience & background Years licensed, work experience, education
  • Legal community recognition Peer endorsements, associations, awards
  • Legal thought leadership Publications, speaking engagements
  • Discipline
    This lawyer was disciplined by a state licensing authority in 2024
    Disciplinary information may not be comprehensive, or updated. We recommend that you always check a lawyer's disciplinary status with their respective state bar association before hiring them.
Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution