Musi, Mattson, Daubenberger & Clark, LLP

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Musi, Mattson, Daubenberger & Clark, LLP When you are in need of legal representation, you can rely on the attorneys of MMD&C. Musi, Mattson, Daubenberger & Clark, L.L.P.

is a mid-sized full-service law firm serving Southeast Pennsylvania including Media, West Chester, Philadelphia, and Norristown as well as all of New Jersey. The size of the firm allows for individual and personalized client attention coupled with large-scale litigation capabilities. The skilled attorneys of Musi, Mattson, Daubenberger & Clark have decades of experience and success in representing

all types of clients, including individuals, businesses, and large governmental agencies in both trial and appellate courts. Practice areas include, but are not limited to:
- Criminal Law
- Personal Injury
- Family Law
- Estates and Estate Planning
- Real Estate and Construction Law

Please join us in welcoming Joseph T. Mattson to Musi, Mattson, Daubenberger & Clark, L.L.P. as Of Counsel.With more tha...
20/05/2026

Please join us in welcoming Joseph T. Mattson to Musi, Mattson, Daubenberger & Clark, L.L.P. as Of Counsel.
With more than 40 years of legal experience and a longstanding reputation for professionalism and dedicated client service, Joe brings tremendous knowledge and experience to our team. We are proud to have him join the firm and look forward to the value he will continue to provide to our clients and community.
Read more here:
https://mmdlawfirm.com/blog/welcoming-joseph-t-mattson-as-of-counsel/

Musi, Mattson, Daubenberger & Clark, L.L.P. is pleased to announce that Joseph T. Mattson has joined the firm as Of Counsel.

Family law decisions can shape your life, and your children’s future, for years to come. But what happens if the court g...
08/04/2026

Family law decisions can shape your life, and your children’s future, for years to come. But what happens if the court gets it wrong?
Appeals in Pennsylvania family law cases aren’t about retrying everything. They are about identifying legal errors and presenting a clear, compelling argument for change.
In our latest blog, we explain how family law appeals work, what judges look for, and why having the right legal strategy matters so much in these deeply personal cases.
👇 Read more
https://mmdlawfirm.com/blog/pennsylvania-appellate-court-advocacy/
💡 Whether it’s custody, support, or another critical issue, understanding your appellate rights can make all the difference.

PA family law appellate advocacy—MMDC handles Superior Court appeals with precision, protecting client outcomes in custody, divorce, and complex cases.

Understanding your rights after an alcohol-related accident is critical.In Pennsylvania, dram shop laws allow victims to...
23/03/2026

Understanding your rights after an alcohol-related accident is critical.
In Pennsylvania, dram shop laws allow victims to hold bars, restaurants, and other establishments accountable if they serve alcohol to someone who is visibly intoxicated or underage, and that person causes harm.
For victims, this can open the door to additional compensation. For business owners, it’s a reminder of how critical responsible service practices are.
Our latest blog breaks down:
✔️ When liability applies
✔️ What “visible intoxication” really means
✔️ How these claims impact both victims and businesses
👉 Read more:

Understand Pennsylvania Dram Shop Law - liability, visible intoxication, statute of limitations, and how alcohol-serving businesses can reduce legal risk.

✨ New Blog Alert – Recent Family Law Success Stories✨At Musi, Mattson, Daubenberger & Clark, L.L.P., we pride ourselves ...
04/03/2026

✨ New Blog Alert – Recent Family Law Success Stories✨
At Musi, Mattson, Daubenberger & Clark, L.L.P., we pride ourselves on advocating for families during some of life’s most challenging transitions. Our latest blog shares real results from recent custody and relocation cases where our attorneys delivered meaningful outcomes for clients seeking stability and the best interests of their children. These successes demonstrate our team’s dedication to strategic advocacy and personalized representation.
👉 Read the full blog here:
https://mmdlawfirm.com/blog/recent-family-law-success-stories/
Whether you’re facing custody questions or long-term family law issues, our experienced team is here to help.

MMD&C is pleased to recognize Lucas A. Clark, IV, Esquire for his recent success in a series of custody and relocation trials. Through diligent preparation, strategic advocacy, and effective courtroom representation, Luke achieved favorable results on behalf of his clients in three separate matters....

Planning a construction or development project in Pennsylvania?Zoning laws play a major role in what you can build and w...
03/02/2026

Planning a construction or development project in Pennsylvania?

Zoning laws play a major role in what you can build and where. Our latest blog walks through the basics of Pennsylvania zoning regulations, including permits, variances, and why local rules can differ from one municipality to another.

Learn more here:

Navigating Pennsylvania zoning laws? Learn how zoning ordinances, variances, and special exceptions affect land development and approvals.

**Important Family Law Updates in Pennsylvania**Pennsylvania family law changes could directly affect custody decisions,...
13/01/2026

**Important Family Law Updates in Pennsylvania**
Pennsylvania family law changes could directly affect custody decisions, divorce proceedings, pets, paternity, and support obligations. These changes reflect modern family life and can have real consequences for parents and families.
Read the full blog to learn what these updates mean for you: https://mmdlawfirm.com/blog/important-family-law-updates-in-pennsylvania/

Recent Pennsylvania family law updates could impact custody, divorce, pets, paternity, and support. See what the new laws mean for families.

🚨 New Blog Post! 🚨 We’re proud to highlight Attorney Richard C. Daubenberger’s exceptional sentencing result in a recent...
17/11/2025

🚨 New Blog Post! 🚨

We’re proud to highlight Attorney Richard C. Daubenberger’s exceptional sentencing result in a recent high-stakes fraud case. His strategic, client-focused approach led to an outcome with no jail time.

👉 Read the full story:

https://mmdlawfirm.com/blog/attorney-richard-c-daubenberger-achieves-exceptional-sentencing-result-in-high-stakes-fraud-case/

At Musi, Mattson, Daubenberger & Clark, LLP, we take great pride in the results our attorneys achieve for our clients. A recent case handled by Richard C. Daubenberger, Esquire, is a perfect example of that dedication in action.

We are pleased to welcome Grace Yarosewick as the newest attorney to join Musi, Mattson, Daubenberger & Clark, LLP! Grac...
24/10/2025

We are pleased to welcome Grace Yarosewick as the newest attorney to join Musi, Mattson, Daubenberger & Clark, LLP!
Grace brings experience in family law, name changes, adoptions and civil litigation, along with a strong commitment to serving our clients and community.
Please join us in welcoming Grace to the team!

Grace V. Yarosewick is an associate attorney with Musi, Mattson, Daubenberger & Clark. Grace has been part of the firm since 2021, beginning her career as an intern before advancing to the role of law clerk and now attorney. Her longstanding experience with the firm has provided her with a deep unde...

25/09/2025

🏗️ Contractors, Suppliers & Property Owners: Are You Prepared for a Mechanic’s Lien?
Whether you're providing labor/materials or owning the property, mechanics' liens can have major financial consequences.
For contractors and suppliers, it’s a powerful tool to secure payment.
For property owners, it can cloud title, delay financing or sales, and trigger legal disputes—even if you’ve already paid the general contractor.
📘 In our latest blog, we break down:
- What a mechanic’s lien is and how it works
- Strict filing process
- How property owners can respond
👉 Whether you’re protecting your right to get paid, or protecting your property, understanding lien law is critical.

https://mmdlawfirm.com/blog/mechanics-liens/

Great job, Lindsay!
07/08/2025

Great job, Lindsay!

Attorney Lindsay J. Killian wins probation in multimillion theft case, helping a mother overcome addiction and avoid prison to stay with her children.

Address

21 W 3rd Street

19063

Opening Hours

Monday 08:00 - 17:00
Tuesday 08:00 - 17:00
Wednesday 08:00 - 17:00
Thursday 08:00 - 17:00
Friday 08:00 - 17:15

Telephone

+16108918806

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