Atty. John G. Costello

Atty. John G. Costello

Mr. John G.

Lanham Lanham 15 yrs experience 15 year
Call (240) 623-2003 Book Appointment

Profile Summary

About John G. Costello at a glance

John G. Costello is an Attorney based in Lanham, Maryland, practicing at Alpert Schreyer, LLC. They have 15+ years of legal experience, licensed to practice since 2011. Their practice focuses on car accidents and personal injury. Admitted to practice in Maryland (2011) and District of Columbia (2019). Serands clients in Lanham, MD and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. John G. Costello is a lawyer practicing personal injury, automobile accidents
  • John has been licensed for 15 years
  • John practices at Alpert Schreyer, LLC in Lanham, MD

Practice Areas Explained

John G. Costello's Areas of Practice

Each practice area below reflects the types of cases John G. Costello handles, with a brief overview of what that area of law covers.

Car Accidents

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

John G. Costello is one of 36,807 car accidents attorneys indexed nationally. Browse car accidents 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.

John G. Costello 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 Lanham 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 Lanham or all attorneys in Maryland.

Frequently Asked

Common questions about John G. Costello

Where is John G. Costello's law office located?
John G. Costello's law practice is located in Lanham, Maryland. The firm is Alpert Schreyer, LLC. You can contact the office directly through this profile page.
What practice areas does John G. Costello handle?
John G. Costello focuses on car accidents, personal injury. Each practice area listed reflects experience handling cases of that type in Maryland.
How long has John G. Costello practiced law?
John G. Costello has 15+ years of legal experience and has been licensed since 2011.
How can I contact John G. Costello for a consultation?
You can contact John G. Costello 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.

Bar Admissions

Maryland
Admitted: 2011
District of Columbia
Admitted: 2019

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