Atty. Jonathan N. Portner

Atty. Jonathan N. Portner

Mr. Portner is a member of the National Top 100 Trial Lawyers.

Columbia Columbia 38 yrs experience 38 year
Call (410) 442-6897 Book Appointment

Profile Summary

About Jonathan N. Portner at a glance

Jonathan N. Portner is a Managing Partner based in Columbia, Maryland, practicing at Portner & Shure, P.A.. They have 38+ years of legal experience, licensed to practice since 1988. Their practice focuses on dui/dwi, car accidents, medical malpractice, wrongful death, and personal injury. Admitted to practice in Maryland (1988), District of Columbia (1989), and Virginia (2019). Educated at University of Baltimore (J.D., 1988) and Franklin & Marshall College (B.A., 1985). Recognitions include Peer Reviewed. Serands clients in Columbia, MD and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Portner is a member of the National Top 100 Trial Lawyers
  • Time Magazine in fact, recently recognized his achievements
  • Mr. Portner has been an attorney licensed to practice in Maryland
  • Read Full Bio No biography for Jonathan N. Portner or Portner & Shure, P.A. is available

Practice Areas Explained

Jonathan N. Portner's Areas of Practice

Each practice area below reflects the types of cases Jonathan N. Portner handles, with a brief overview of what that area of law covers.

DUI / DWI Defense

Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.

Jonathan N. Portner is one of 29,977 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in Maryland →

Car Accidents

Hurt in a car crash? Car accident lawyers fight insurance companies for fair compensation — free consult, no fee unless you win.

Jonathan N. Portner is one of 36,807 car accidents attorneys indexed nationally. Browse car accidents attorneys in Maryland →

Medical Malpractice

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

Jonathan N. Portner is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Maryland →

Wrongful Death

Jonathan N. Portner is one of 31,253 wrongful death attorneys indexed nationally. Browse wrongful death attorneys in Maryland →

Personal Injury

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.

Jonathan N. Portner is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Maryland →

Jurisdictional Context

Why local counsel matters in Maryland

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

Looking for additional Maryland attorneys? Browse all attorneys in Columbia or all attorneys in Maryland.

Frequently Asked

Common questions about Jonathan N. Portner

Where is Jonathan N. Portner's law office located?
Jonathan N. Portner's law practice is located in Columbia, Maryland. The firm is Portner & Shure, P.A.. You can contact the office directly through this profile page.
What practice areas does Jonathan N. Portner handle?
Jonathan N. Portner focuses on dui/dwi, car accidents, medical malpractice, wrongful death, personal injury. Each practice area listed reflects experience handling cases of that type in Maryland.
How long has Jonathan N. Portner practiced law?
Jonathan N. Portner has 38+ years of legal experience and has been licensed since 1988.
Where did Jonathan N. Portner go to law school?
Jonathan N. Portner earned their education at (J.D., 1988); (B.A., 1985).
How can I contact Jonathan N. Portner for a consultation?
You can contact Jonathan N. Portner 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 Jonathan N. Portner received?
Jonathan N. Portner's notable recognition includes: Peer Reviewed.

Education

J.D.
University of Baltimore
- 1988
B.A.
Franklin & Marshall College
- 1985

Awards

Peer Reviewed

Bar Admissions

Maryland
Admitted: 1988
District of Columbia
Admitted: 1989
Virginia
Admitted: 2019

Reviews

5.0
1 Review
5 0
4 0
3 0
2 0
1 0
These reviews belong to platform users; they do not constitute advertisement or promotion for the attorney. Opinions are published for informational purposes only.

No reviews yet.