What is Retrograde Extrapolation?

Find a Competent DUI Lawyer Now!

Horsham DUI Lawyer
Abington DUI Lawyer
Ridley DUI Lawyer
West Chester DUI Lawyer
Phoenixville DUI Lawyer
Whitemarsh Township DUI Lawyer
Springfield DUI Lawyer
Lower Providence DUI Lawyer

Client Reviews

Mark

2 months ago

Truly great experience with McKenzie Law Firm. David was great to work with, fantastic communication, and answered all by questions. He took care of my case from beginning to end and worked it out to have the citation withdrawn before my court date. No citation, no penalty, no points, and I didn’t even have to go to court! Way more than I expected and can’t ask for more than that. I would highly recommend McKenzie Law to anyone.

CATHY FENN

2 months ago

David McKenzie is a great attorney. He has helped my nephew on multiple occasions and always gets a better outcome than expected each time. He does his very best and explains outcomes and is very personable and empathetic. He is very professional, calm, caring, and trustworthy. I am very thankful for all He did.

Luiz Rivera

3 months ago

I can't recommend David McKenzie enough. My stepfather had a traffic citation today, and from the moment we walked in, we were treated with professionalism, respect, and genuine care. The attorney took the time to explain everything clearly, and made us feel confident throughout the process.
The best part was that we left with nothing but good news. His knowledge, honesty, and dedication truly made a stressful situation much easier. If you're dealing with a traffic violation, this is definitely the law firm you want on your side. Thank you for all you do and for the outstanding service!

OLIMZHON BAKHRONOV

3 months ago

"I want to sincerely thank my lawyer for brilliantly handling my case in court. Everything was done at the highest level — professionally and with full dedication. We got exactly the result we hoped for.

Working with such a specialist is a real pleasure. You can feel his vast experience, attention to every detail, and genuine care for the client. Thank you so much for your excellent work!

I wish you continued success, new victories in court, and may your practice keep thriving. You are a true professional!"

KEYI JIANG

4 months ago

David was extremely professional and responsive throughout the entire process. He successfully negotiated the dismissal of my speeding citation and made the process stress-free. I highly recommend him to anyone dealing with traffic matters in Pennsylvania.

N8 TheGr8

5 months ago

David was fantastic, friendly, dapper and informed. Even though i asked annoying questions, he exercised patience, professionally and communicated clearly, making sure i understood the situation fully. He resolved all of my concerns, before they began. Thanks again David!

Edwin Velez

6 months ago

David McKenzie was my lawyer and did an amazing job. He handled everything, stayed on top of my case, and got the charges dropped. Super professional and easy to work with. Definitely recommend him.

Ian Anderson-Ley

2 years ago

Great experience with Mr. McKenzie. Couldn’t be happier with his representation. Hopefully I never do, but if I ever need an attorney again I will certainly be using him again

kevin

2 years ago

He was very sharp, knew exactly what he was doing, and got me an amazing deal. 10/10 lawyer!

Raymond Ramsher

2 years ago

Remarkable service

Kathlyn Davis

2 years ago

David is and will be my trusted attorney moving forward. The results he promised.

Almira Reyna O. Macalino

2 years ago

I recently applied for the Mckenzie Law Scholarship, and I was impressed by their commitment to supporting aspiring legal professionals. The application process was smooth, and I appreciate the opportunity they provide for students to pursue their legal education. Thank you, Mckenzie Law, for your dedication to empowering future lawyers!

Alex Hrskuti

2 years ago

Mr. McKenzie was an absolute miracle to have represented me in my case. He was able to negotiate very well with the prosecution as my case was not very open and shut, at least in my eyes. Having him come in with a fresh view of the case and takeover from the P.D. that was on my case truly shows what an expert in law this gentleman is. I highly recommend you reach out to him for help, he truly changed my future forever!

Dan N

3 years ago

I highly recommend David McKenzie for any criminal matter no matter how big or how small. He kept in constant communication with me, he made sure I had all the information about my case, and he provided me with all of the possible outcomes so I knew what I was up against. Even with having a felony on my record, he was able to completely get me off my original charge and I only ended up with a $20 fine. I wouldn’t choose anyone else to represent me and if you decide to hire a different lawyer you’re making a mistake. Good Luck!

Rich Canaris

4 years ago

My experience with the McKenzie Law Firm was very positive. From the initial contact, I was treated with courteous and professional service from both David and his staff. David has continued to take the time needed to consult with me on related matters and has always provided me with prompt responses. He has guided me through a rough period with kindness, honesty and understanding. He has made me feel at ease through the duration and I thank him for all of his help. I would highly recommend his representation in legal matters.

Our Location

Free Case Evaluation

Get the latest guidance, tips, and updates directly from Attorney David C. McKenzie III on criminal defense and DUI law.

What is Retrograde Extrapolation?

Related Post

Felon Living in a House With a Gun? Pennsylvania Law Explained

Intent to Deliver Drugs in Pennsylvania: What Prosecutors Must Prove

Pennsylvania Drug Possession Charges: When You Don’t Have to Hold It to Face Charges

Quick Links

Practice Areas

Office Address