Atty. Jerome Erwin Marks

Atty. Jerome Erwin Marks

Jerome Erwin Marks is a lawyer practicing personal injury, products liability, insurance defense and 5 other areas of law. Jerome received a B.A. degree from Temple University in 1972, and has been licensed for 51 years.

Philadelphia Philadelphia 51 yrs experience 51 year
Call (215) 764-3873 Book Appointment

Insurance Defense & More Attorney · Serving Philadelphia, PA · 51+ Years Experience

Profile Summary

About Jerome Erwin Marks at a Glance

Jerome Erwin Marks is a Senior Partner based in Philadelphia, Pennsylvania, practicing at Marks, O'Neill, O'Brien & Courtney, P.C.. They have 51+ years of legal experience, licensed to practice since 1975. Their practice focuses on medical malpractice, personal injury, slip & fall, product liability, and litigation. Admitted to practice in Pennsylvania (1975). Educated at Duquesne University (J.D., 1975) and Temple University (B.A., 1972). Recognitions include AV Preeminent. Active member of Philadelphia, Pennsylvania and American Bar Associations Maritime Law Association of the United States Pennsylvania Defense Institute Defense Research and Trial Lawyers Association Philadelphia Association of Defense Counsel. Serves clients in Philadelphia, PA and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Jerome Erwin Marks

  • Jerome Erwin Marks is a lawyer practicing personal injury, products liability, insurance defense and 5 other areas of law
  • Jerome received a B.A. degree from Temple University in 1972, and has been licensed for 51 years
  • Jerome practices at Marks, O'Neill, O'Brien & Courtney, P.C. in Philadelphia, PA and 1 other location

Practice Areas Explained

Jerome Erwin Marks's Areas of Legal Practice

Each practice area below reflects the types of cases Jerome Erwin Marks handles, with a practical overview of what that area of law involves and how it may apply to your situation in Philadelphia.

Medical Malpractice in Philadelphia

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

Jerome Erwin Marks is one of 48,593 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Pennsylvania →

Personal Injury in Philadelphia

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

Jerome Erwin Marks is one of 262,557 personal injury attorneys indexed nationally. Browse personal injury attorneys in Pennsylvania →

Slip & Fall / Premises Liability in Philadelphia

Jerome Erwin Marks is one of 29,187 slip & fall attorneys indexed nationally. Browse slip & fall attorneys in Pennsylvania →

Product Liability in Philadelphia

Jerome Erwin Marks is one of 65,610 product liability attorneys indexed nationally. Browse product liability attorneys in Pennsylvania →

Civil Litigation in Philadelphia

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Jerome Erwin Marks is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Pennsylvania →

Jurisdictional Context

Why Local Counsel Matters in Philadelphia

Practicing law in Pennsylvania. Legal matters in Pennsylvania are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Philadelphia are typically filed in the local municipal court or the appropriate Pennsylvania state district court, depending on subject matter and amount in controversy. An attorney licensed in Pennsylvania brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Pennsylvania courts without local counsel or pro hac vice admission.

Philadelphia Courts and Legal Process

Choosing a Philadelphia-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

Looking for additional Pennsylvania attorneys? Browse all attorneys in Philadelphia or all attorneys in Pennsylvania.

Frequently Asked

Common Questions About Jerome Erwin Marks

Where is Jerome Erwin Marks's law office located?
Jerome Erwin Marks's law practice is located in Philadelphia, Pennsylvania. The firm is Marks, O'Neill, O'Brien & Courtney, P.C.. You can contact the office directly through this profile page.
What practice areas does Jerome Erwin Marks handle?
Jerome Erwin Marks focuses on medical malpractice, personal injury, slip & fall, product liability, litigation. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has Jerome Erwin Marks practiced law?
Jerome Erwin Marks has 51+ years of legal experience and has been licensed since 1975.
Where did Jerome Erwin Marks go to law school?
Jerome Erwin Marks earned their education at (J.D., 1975); (B.A., 1972).
How can I contact Jerome Erwin Marks for a consultation?
You can contact Jerome Erwin Marks directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has Jerome Erwin Marks received?
Jerome Erwin Marks's notable recognition includes: AV Preeminent.

Professional Profile

Why Clients in Philadelphia Choose Jerome Erwin Marks

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Jerome Erwin Marks's practice in the field of medical malpractice, personal injury, slip & fall, product liability, and litigation.

Decade-Tested Legal Experience

Jerome Erwin Marks brings 51+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Broad Practice Area Coverage

Covering medical malpractice, personal injury, and slip & fall, Jerome Erwin Marks can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Philadelphia

A Philadelphia-based practice means Jerome Erwin Marks attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Jerome Erwin Marks Handles in Philadelphia

Below is a representative sample of the types of matters Jerome Erwin Marks has experience with under Pennsylvania law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Surgical error claims
Medical Malpractice
Misdiagnosis and delayed diagnosis
Medical Malpractice
Birth injury lawsuits
Medical Malpractice
Hospital negligence
Medical Malpractice
Car accident injury claims
Personal Injury
Slip and fall cases
Personal Injury
Wrongful death suits
Personal Injury
Workers' compensation appeals
Personal Injury

This list is illustrative, not exhaustive. Contact Jerome Erwin Marks directly to discuss the specifics of your situation.

Search Reference

How People Find Jerome Erwin Marks Online

Prospective clients searching for legal help in Philadelphia commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Jerome Erwin Marks.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Jerome Erwin Marks directly.

Education & Law School Background

J.D.
Duquesne University
- 1975
B.A.
Temple University
- 1972

Awards & Professional Honors

AV Preeminent

Bar Admissions & Licensed Jurisdictions

Pennsylvania
Admitted: 1975

Client Reviews & Ratings — Jerome Erwin Marks

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