Mark Meredith Zlock

Mark Meredith Zlock

also known as Mark Zlock, Mark M. Zlock

4.7
Rating: 7.6

Licensed for 16 years

Family Lawyer at Yardley, PA
Practice Areas: Family, Criminal Defense, DUI & DWI, Speeding & Traffic Ticket

777 Township Line Road, Suite 240, Yardley, PA

About Mark

Practice Areas

4

Practice Areas

Family 70%

Child Custody, Child/Spousal Support/APL, Protection from Abuse, Divorce, Alimony, Equitable Distribution, Name Change, Grandparents Rights, etc.

70%
Criminal Defense 10%

Domestic Violence, Assault, Drug Possession, Shoplifting, Theft, Traffic Violations

10%
DUI and DWI 10%

First, Second and Third Offense, Underage DUI, License Suspension, ARD, etc.

10%
Speeding and Traffic Ticket 10%

Speeding, Reckless Driving, Careless Driving, Hit & Run, Underage DUI, License Suspension, Appeals

10%

Fees and Rates

Cost

Free Consultation

$0 first 30 minutes

Contingency

20%-35%

Retainer

Sometimes


Payment Methods

  • Cash
  • Check
  • Credit Card

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Licenses

Licensed in Pennsylvania for 16 years

State: Pennsylvania

Acquired: 2009

Active

No misconduct found

Location

Zlock & Grisillo

777 Township Line Road, Suite 240, Yardley, PA, 19067

Zlock & Grisillo

123 N Broad Street Doylestown, PA 18901, Doylestown, PA, 18901

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Mark Meredith Zlock's Reviews

Avvo Review Score

4.7 /5.0

53 Client Reviews

Showing 1 - 5 of 8 reviews | Responsiveness

Posted by Mark | August 02, 2025 | Hired Attorney | Lawsuits & Disputes

Exceptional Advocate

Mark Zlock, Esq. represented me in my case, and I could not have asked for a better advocate. He came up with a path of action that was extremely effective, and succesfully executed it with skill & expertise. Mark was thorough, responsive and insightful. I was made to feel like a valuable client by h...is whole team, and I would happily recommend him & his firm with 100% confidence.

Posted by anonymous | May 14, 2023 | Hired Attorney | Lawsuits & Disputes

If I could leave a ZERO I would

Their attorneys never followed up with me until the day before my hearing. I had to call them to get any information about my case. Zero service. They switched attorneys "on the day of my hearing" so I'd had no contact with the lawyer representing me in the courtroom. They were supposed to represent ...me "aggressively" but totally threw me under the bus. Then they demanded additional fees for reading my complaints afterward. Awful, awful experience.

Posted by Jen | March 04, 2021 | Hired Attorney

Divorce child custody

Mark has been there for me whenever I needed him, he answers his phone day and night. His paralegal staff are very compassionate, empathetic and kind, he had helped me get through, I was scared and he helped me face my fears and move ahead with my head held high, he always ask how my children are doi...ng and if we need anything! I would highly recommend

Posted by Edward | February 26, 2021 | Hired Attorney | Criminal Defense

Knowledgeable, professional and passionate.

I hired Mr. Mark Zlock for a criminal case. In my opinion he was knowledgeable, professional and passionate. He kept me updated during my case and he always returned my phone calls after business hours. He is willing to take chances that paid off. (He successfully won a bail reduction hearing for me.... Very difficult to win). I would recommend Mr. Mark Zlock to anyone who needs an awesome defense attorney!!

Posted by Jesse | December 09, 2020 | Hired Attorney | Child Custody

Not just your typical attorney

Let’s face it…. Custody cases are emotional and hard enough to go through No matter what the case may be. Finding an attorney to represent you is not the easiest thing since you’re pretty much taking a leap of faith and putting it into a complete stranger that will play a huge role in making sure yo...u have a good relationship and sufficient time with your children. This review will never fully explain how my attorney Mark Zlock Is the right person to handle these cases in more ways than one. It’s not only his attention to every detail but Mark is the most knowledgeable attorney when it comes to how every procedure works In a custody situation. He is a humble human being that understands how to communicate with someone in emotional distress. Mark would text or call me just to see how I was feeling or just to talk and see if there is anything that he could help with or put my mind at ease. He has never once asked for any kind of payment for His Extra Communication to make sure I was staying on task and To ask how my overall being was. Mark is worth every hard earned penny I have. He is straightforward and gives the hard honest truth even though it’s hard to hear sometimes. Mark had my custody issue resolved very painlessly And there’s no doubt I will be needing him again in the future to make sure I get to raise my kids with the most time possible. Thank you Mark!

See All Client Reviews

Mark Meredith Zlock's Lawyer Endorsements

Endorse Mark
Paul Jared Mallis headshot
Paul Mallis

Family lawyer | Apr 11

Relationship: Fellow lawyer in community

"Attorney Mark Zlock is truly a “lawyer’s lawyer.” I know Mark back from my days in the District Attorney’s Office. I’ve worked as opposing counsel and co-counsel with Mark. He is knowledgeable, professional and zealous when it come to fighting for his clients. I highly endorse this fine attorney without any reservation."

Timothy Grisillo headshot
Timothy Grisillo

Family lawyer | Apr 10

Relationship: Fellow lawyer in community

"Mark Zlock is an excellent litigator. I recommend him to anyone looking for an aggressive advocate for family and criminal matters."

Rahul Aggarwal headshot
Rahul Aggarwal

Unknown lawyer | Mar 15

Relationship: Fellow lawyer in community

"An excellent lawyer who treats clients with patience, care, understanding, and utmost professionalism - an even better person and I wholeheartedly recommend for future services."

Noah M. Gladstone headshot
Noah Gladstone

Criminal defense lawyer | Jun 22

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Mark Yurovsky headshot
Mark Yurovsky

Family lawyer | Oct 17

Relationship: Fellow lawyer in community

"I endorse this lawyer."

Ralph A Powell headshot
Ralph Powell

General practice lawyer | May 12

Relationship: Worked together on matter

"I endorse this lawyer. Mark is hardworking, dedicated, tenacious, ethical, and will put in the needed time to do a job right. I respect Mark and find him thorough, thoughtful, good with clients, fair, and can be a bull dog when needed. I have given mark several referrals with complete confidence and worked on two cases with him. I find him to be cooperative and a team player."

Brian Alexander Coverdale headshot
Brian Coverdale

DUI and DWI lawyer | Apr 15

Relationship: Worked together on matter

"Mark Zlock is a zealous advocate. He is effective and has strong negotiation tactics. I recommend Mark as an attorney."

View All Endorsements
Jeffrey S. Nowak headshot
Jeffrey Nowak

Bankruptcy and debt lawyer

Robert Amadeo Mancini headshot
Robert Mancini

Juvenile law lawyer

Noah M. Gladstone headshot
Noah Gladstone

Criminal defense lawyer

Timothy Grisillo headshot
Timothy Grisillo

Divorce and separation lawyer

Ralph A Powell headshot
Ralph Powell

Employment and labor lawyer

Brian Alexander Coverdale headshot
Brian Coverdale

Personal injury lawyer

Experience

Rating:  7.6 (Very Good)

Work Experience

2021 - Present

Attorney, Zlock & Grisillo

2009 - 2021

Attorney, Law Office of Mark Zlock, P.C.

Associations

2013 - Present

Bucks County Bar Association

Member

2010 - Present

American Bar Association

2009 - Present

Pennsylvania Bar Association

Member

2009 - Present

Pennsylvania Bar Institute

Member

2009 - 2010

Federal Bar Association

Education

1991

Pennsylvania State University, Dickinson School of Law

JD - Juris Doctor

1986

Lehigh University

Bachelor of Arts

1982

Peddie School

Diploma

Languages

English

Avvo Rating

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