Sean P. Quinlan, Esq. monogramSean P. Quinlan, Esq.Pennsylvania Defense Attorney

Practice Area

Pennsylvania DUI Lawyer & Defense Attorney.

A DUI conviction follows you — jail time, license suspension, ignition interlock, insurance hikes, and a permanent criminal record. We fight every tier of PA DUI from the moment you call.

(717) 724-7503 Schedule a consultation

What we defend.

As a Pennsylvania DUI lawyer with over two decades in Central PA courtrooms, Attorney Sean P. Quinlan defends drivers charged under every tier of 75 Pa.C.S. § 3802 — from first-offense general impairment to felony DUI, refusals, and accident-related cases.

Every Pennsylvania DUI is different. The BAC tier, prior offenses, accident, refusal, and stop legality all change the strategy. We investigate every piece — from the initial traffic stop to the calibration of the breath machine.

As an active member of the National College for DUI Defense, Inc. (NCDD), the nation's premier organization for DUI defense advocates, Attorney Quinlan brings specialized knowledge, advanced training, and cutting-edge resources to every client's case.

First-offense DUI? Start with our ARD Program in PA guide — cost, length, eligibility, and the rules you have to follow.

Arrested in the capital region? See our DUI attorney in Harrisburg PA page for Dauphin County-specific defense, ARD, and court guidance.

  • General Impairment

    First, second, and third offense under §3802(a).

  • High BAC (.10–.159)

    Tier 2 penalties, mandatory minimums, and license suspension defense.

  • Highest BAC (.16+)

    Tier 3 cases involving refusals, accidents, and aggravating factors.

  • Controlled Substance DUI

    Marijuana and prescription DUI defense, including DRE challenges.

  • Underage DUI

    Section 3802(e) charges and protecting academic and licensing futures.

  • CDL & Commercial DUI

    Avoiding career-ending CDL disqualification.

  • ARD Program (PA)

    Eligibility, cost, length, and rules — see our full ARD Program in PA guide.

  • License Suspension Appeals

    PennDOT and ALS hearings — restoring driving privileges.

FAQ

Frequently asked questions.

Common questions about Pennsylvania DUI charges, ARD, license suspensions, and what to do after an arrest.

  • Pennsylvania's first-offense DUI penalties depend on your BAC tier. General impairment (BAC .08–.099) typically carries up to 6 months probation, a $300 fine, and no license suspension if there are no aggravating factors. High BAC (.10–.159) adds a 12-month license suspension and 48 hours minimum jail. Highest BAC (.16+), refusals, or controlled-substance DUIs carry 72 hours minimum jail, a 12-month suspension, and fines up to $5,000. Ignition interlock is required on most first offenses with suspension.

Related pages

DUI Topics & Guides

Explore PA DUI defense by topic.

Every PA DUI case turns on the specifics — BAC tier, priors, refusal, accident, license status, or immigration exposure. Pick the topic that matches your situation for a plain-English breakdown of the law and defense strategy.

Local DUI Defense

DUI lawyer by city & county.

Local court knowledge matters. Each Central PA county runs its own ARD program, its own MDJ network, and its own enforcement pattern. Pick your area for a location-specific overview.

Free Consultation

The sooner we talk, the more we can do.

Every hour matters in a DUI or criminal case. Call directly and speak with Attorney Quinlan — not an intake desk.

(717) 724-7503 Schedule a consultation
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