Atty. John David Portnow

Atty. John David Portnow

John David Portnow is a lawyer practicing taxation, business, wills-trusts-probate and 2 other areas of law. John has been licensed for 15 years.

Rockville Rockville 15 yrs experience 15 year
Call (240) 885-7257 Book Appointment

Profile Summary

About John David Portnow at a glance

John David Portnow is a trusts, probate, estate planning, business, and tax attorney based in Rockville, Maryland. They have 15+ years of legal experience, licensed to practice since 2011. Admitted to practice in Massachusetts (2011), Massachusetts (2011), Pennsylvania (2012), and Pennsylvania (2012). Educated at Temple University (LLM Suffolk, 2013). Serands clients in Rockville, MD and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John David Portnow is a lawyer practicing taxation, business, wills-trusts-probate and 2 other areas of law
  • John has been licensed for 15 years
  • John practices in Rockville, MD

Practice Areas Explained

John David Portnow's Areas of Practice

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

Trusts

John David Portnow is one of 104,171 trusts attorneys indexed nationally. Browse trusts attorneys in Maryland →

Probate

John David Portnow is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in Maryland →

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

John David Portnow is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning attorneys in Maryland →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

John David Portnow is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Maryland →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

John David Portnow is one of 85,302 tax attorneys indexed nationally. Browse tax 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 Rockville 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 Rockville or all attorneys in Maryland.

Frequently Asked

Common questions about John David Portnow

Where is John David Portnow's law office located?
John David Portnow's law practice is located in Rockville, Maryland. You can contact the office directly through this profile page.
What practice areas does John David Portnow handle?
John David Portnow focuses on trusts, probate, estate planning, business, tax. Each practice area listed reflects experience handling cases of that type in Maryland.
How long has John David Portnow practiced law?
John David Portnow has 15+ years of legal experience and has been licensed since 2011.
Where did John David Portnow go to law school?
John David Portnow earned their education at (LLM Suffolk, 2013).
How can I contact John David Portnow for a consultation?
You can contact John David Portnow 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.

Education

LLM Suffolk
Temple University
- 2013

Bar Admissions

Massachusetts
Admitted: 2011
Massachusetts
Admitted: 2011
Pennsylvania
Admitted: 2012
Pennsylvania
Admitted: 2012
Texas Massachusetts District Court
Admitted: 2014
Texas
Admitted: 2014

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