Mark A. Sereni

PRO

Mark A. Sereni

5.0
Rating: 10.0

Licensed for 38 years

Libel and slander Lawyer at Media, PA
Practice Areas: Libel & Slander, Employment & Labor, Personal Injury ... +2 more

21 West Front Street, (Corner of Front and Plum Streets), Media, PA

Virtual Consultation Available

About Mark

Biography

I'm a courtroom attorney with extensive civil litigation experience. I fight for what's right.

Practice Areas

5

Practice Areas

Libel and Slander 26%

26%
Employment and Labor 24%

24%
Medical Malpractice 20%

20%
Personal Injury 20%

20%
Wrongful Termination 10%

10%

Fees and Rates

We have not found any cost information for this lawyer

Licenses

Licensed in Pennsylvania for 38 years

State: Pennsylvania

Acquired: 1987

Active

No misconduct found

Location

DiOrio & Sereni, LLP

21 West Front Street, (Corner of Front and Plum Streets), Media, PA, 19063

markaserenilaw.com

Online Presence

Other places you can find Mark online.

Mark A. Sereni's Reviews

Avvo Review Score

5.0 /5.0

54 Client Reviews

Showing 1 - 5 of 15 reviews | Responsiveness

Posted by Liz | October 21, 2025 | Employment & Labor

Strategic & Sharp Legal Team with a Human-Centered Approach

From the moment I walked into Diorio & Sernini, LLP, the team demonstrated professionalism, compassion, and—most importantly—action. I was faced with a time-sensitive employment matter leading into a business holiday, and Diorio & Sernini was the only firm to respond promptly and clearly. After re...ceiving no response from other firms recommended to me, I stopped by in person. Jennifer, who was the only staff member in the office late that day, immediately showed empathy and initiative—making copies of my documents and beginning the consultation process on the spot. Within two business days, I had a scheduled consultation, ensuring I could meet my critical timeline. Every person I interacted with at the firm embodied a human-centered approach to their work. Mark was comprehensive in his review, honest and transparent in evaluating my position, and clear in outlining my legal options. His approach combined strong legal expertise with a genuine understanding of the personal and family stressors that accompany employment transitions. When I made my decision based on his counsel, Mark remained readily available for additional questions and clarifications as I navigated the process. I highly recommend Mark and his team to anyone seeking sharp, strategic, and sensible legal support that balances the best legal outcomes with human understanding. They are true advocates—knowledgeable, responsive, and deeply empathetic.

Posted by Katherine | December 18, 2024 | Hired Attorney | Libel & Slander

Incredible Lawyer, Results Driven

I highly recommend Mark Sereni, Esquire. I hired Mark in 2024 and he was absolutely exceptional in helping me win a complex defamation and invasion of false light case that had serious personal, professional, and financial implications for me. From start to finish, Mark demonstrated an unparallel...ed level of professionalism and dedication. What stood out the most was Mark's ability to deeply understand the details of my case, including the emotional and professional toll it had taken on me and how it was affecting my business. He didn’t just see me as a client; he genuinely placed himself in my shoes, which made all the difference in crafting a strategy that resonated with both the legal requirements and my personal goals. Mark’s communication skills are superb. He kept me informed at every step, ensuring I felt supported and understood throughout the process. He explained complex legal concepts in a way that was easy to understand, which made me feel confident and prepared during every stage of the case. He maintained a calm, cool, and collected presence at all times. Mark was incredibly prepared and never missed a beat in all that he put together for my case. Under pressure, Mark truly shines. His ability to stay calm, focused, and strategic, even in high-stakes moments, was impressive. He devised a winning strategy that not only addressed the legal aspects of the case but also showcased his deep insight into human dynamics and effective mediation tactics. Mark worked hard to get me a winning outcome and I couldn't be more happy. Even the mediator of my case said to me, "You've got a great lawyer who is well prepared." I highly recommend Mark Serini for any legal needs. His commitment, expertise, and ability to deliver results are second to none.

Posted by anonymous | October 05, 2023 | Hired Attorney | Lawsuits & Disputes

Amazing Attorney-Job well done!

Mark and his staff represented me during my case and all I can say is that they were nothing short of amazing! Mark is professional, knowledgeable, and works tirelessly to support you during one of your worst times. Mark took the time to get to know me and he had my best interest in mind from day o...ne. During this difficult time Mark was always one phone call or email away and was always at the ready when I had a question or concern. Mark cares about you and it shows in his work. Mark worked extremely hard for me and I was very impressed . I would not hesitate to work with Mark again as he did such an amazing job for me! I am so thankful for what Mark and his staff did for me as they did everything they could and then some. If you are searching for someone...search no more, Mark is the guy to go with!

Posted by anonymous | March 29, 2017 | Hired Attorney | Employment & Labor

Employment

I retained Mark Sereni to represent me in an employment issue. Mark and his staff are the epitome of professionalism. The quick response and efficiency of Mr. Sereni and staff ensured that I was immediately informed of developments, phone calls were returned promptly and they took as much time as n...ecessary to answer questions in a clear and understandable manner. Due to the skilled representation provided by Mr. Sereni and staff my case resulted in a successful resolution for me. I would highly recommend this firm to anyone in need of legal counsel.

Posted by Elissa | June 30, 2016 | Hired Attorney | Car Accidents

Grateful

When that car hit us last September, our lives changed. We began a period of our lives that was scary and very upsetting. Nothing like this had ever happened to us before. When we went into Mark Sereni's office and began our case, we put our faith and trust in Mark and his staff. They were always ve...ry honest and informative, answered every question patiently, they came to our home to help us, thought of every detail in preparation for our case and represented us with integrity. We could not be more grateful to Mark and his staff for all they have done. The work that they do really makes a difference in people's lives. We are very grateful to Mark and his team.

See All Client Reviews

Mark A. Sereni's Lawyer Endorsements

Endorse Mark
Arik Tzvi Ben-Ari headshot
Arik Ben-Ari

Litigation lawyer | Jun 05

Relationship: Fellow lawyer in community

"Mark has an impeccable reputation for getting results for his clients and is well regarded by the legal community for his skills and abilities both in and out of the courtroom."

Christian K. Lassen II headshot
Christian Lassen

Unknown lawyer | Apr 13

Relationship: Fellow lawyer in community

"Well respected in the legal community."

Anthony J. Bilotti headshot
Anthony Bilotti

Litigation lawyer | Dec 04

Relationship: Fellow lawyer in community

"I endorse this lawyer's work."

View All Endorsements
Kathryn Virginia Chandless headshot
Kathryn Chandless

Employment and labor lawyer

Arik Tzvi Ben-Ari headshot
Arik Ben-Ari

Criminal defense lawyer

Anthony J. Bilotti headshot
Anthony Bilotti

Workers compensation lawyer

Experience

Rating:  10.0 (Superb)

Honors

2026

Super Lawyer, Philadelphia Magazine

2025

Super Lawyer, Philadelphia Magazine

2025

Top Lawyer, Main Line Today Magazine

2025

Top Lawyer in the fields of personal injury and trial, Delaware County Daily Times' Reader Choice

2024

Top Lawyer, Main Line Today Magazine

2024

Super Lawyer, Philadelphia Magazine

2024

Top Lawyer in the field of medical malpractice, Delaware County Daily Times’ Reader Choice

2023

Top 100 Civil Plaintiff Trial Lawyers in Pennsylvania, The National Trial Lawyers

2023

Top Lawyer in the field of medical malpractice, Delaware County Daily Times’ Reader Choice

2023

Top Lawyer, Main Line Today Magazine

2023

Super Lawyer, Philadelphia Magazine

2022

Top Lawyer in the field of medical malpractice, Delaware County Daily Times’ Reader Choice

2022

Top Lawyer, Main Line Today Magazine

2022

Top 100 Civil Plaintiff Trial Lawyers in Pennsylvania, The National Trial Lawyers

2022

Super Lawyer, Philadelphia Magazine

2021

Top 100 Civil Plaintiff Trial Lawyers in Pennsylvania, The National Trial Lawyers

2021

Top Lawyer, Main Line Today Magazine

2021

Super Lawyer, Philadelphia Magazine

2020

Top Lawyer, Main Line Today Magazine

2020

Super Lawyer, Philadelphia Magazine

2019

Super Lawyer, Super Lawyers

2019

Top Lawyer, Main Line Today Magazine

2019

Super Lawyers, Philadelphia Magazine

2018

Top Lawyer, Main Line Today Magazine

2018

Best Lawyer in the field of employment discrimination, Delaware County Daily Times’ Reader Choice

2018

Super Lawyer, Philadelphia Magazine

2018

Top 100 Civil Plaintiff Trial Lawyers in Pennsylvania, The National Trial Lawyers

2017

Super Lawyer, Philadelphia Magazine

2016

Super Lawyer, Philadelphia Magazine

2016

Best Lawyer in the field of trial work, tied for 1st place, Delaware County Daily Times' Reader's Choice

2015

Super Lawyer, Philadelphia Magazine

2014

Super Lawyer, Philadelphia Magazine

2013

AV Peer Review Rating - Preeminent, Martindale-Hubbell

2013

Super Lawyer, Philadelphia Magazine

2012

Top Lawyer, Main Line Today Magazine

2012

Super Lawyer, Philadelphia Magazine

2011

Awesome Attorney, Suburban Life Magazine

2011

Top Lawyer, Main Line Today Magazine

2011

Super Lawyer, Philadelphia Magazine

2010

Awesome Attorney, Suburban Life Magazine

2010

Super Lawyer, Philadelphia Magazine

2009

Top Lawyer, Main Line Today Magazine

2009

Super Lawyer, Philadelphia Magazine

2009

Top 2008 Verdicts/Settlements, Legal Intelligencer

2008

Super Lawyer, Philadelphia Magazine

2007

Super Lawyer, Philadephia Magazine

2006

Super Lawyer, Philadelphia Magazine

2005

Super Lawyer, Philadelphia Magazine

Work Experience

2004 - Present

Jury Consultant, Jury-Focused - jury focus groups and mock trials

1997 - Present

Partner, DiOrio & Sereni, LLP

Associations

2014 - Present

Justinian Society of Delaware County

Member

2013 - Present

Concord Townwatch

Solicitor

2010 - Present

National Employment Lawyers Association

Member

2010 - Present

Concord Township Public Safety Advisory Committee

Member

American Association for Justice

Member

Springfield School District

Solicitor

Marple Newtown School District

Solicitor

National School Boards Association, Council of School Attorneys

Member

Pennsylvania School Boards Association

Member

Delaware County School Districts

Special Counsel

The Eastern Pennsylvania Chapter of the National Employment Lawyers Association

Member

Guy G. DeFuria American Inn of Court

Member

Delaware County Trial Lawyers Association

President

American Bar Association

Member

Pennsylvania Bar Association

Member

Delaware County Bar Association

Member

Pennsylvania Association For Justice

Member

Pennsylvania Trial Lawyers Association

Member

Sample of Legal Cases

Court Upholds Public School District Protection of Taxpayer Funds and Integrity of Competitive Bid System

Successful Trial Court Decision

Third Circuit Court Of Appeals Upholds Public School District’s Ability to Protect the Rights Of Its Kindergarten Students

Successful Third Circuit Court of Appeals Decision

See More Legal Cases

Education

1987

University of Pennsylvania Law School

Juris Doctor

1987

National Institute for Trial Advocacy - Intensive

Diplomate

1984

St. Joseph's University

Bachelors of Science

Publications

2014

Suburban Life Magazine Committed, Connected, Respected

2010

Delaware County Daily Times The Final Word

Languages

English

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 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