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Mark Sheridan Brennan, Sr., Cannabis Attorney in Richmond, Virginia

Over 40 years of legal practice · focused on Cannabis, Employment, and General · 5.0/5 rating from 1 verified client review

Partner

Richmond, VA

Practicing cannabis in Richmond since 1986.

40+
Years practicing
5.0 ★
1 client review
4
Bar admissions

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Quick answer

Mark Sheridan Brennan, Sr. is a partner based in Richmond, VA. The practice focuses on Cannabis, Employment, and General. Mark has over 40 years of legal experience. Rated 5.0 out of 5 from 1 client review.

Based in
Richmond, VA
Experience
over 40 years
Known for
Cannabis · Employment · General
  • Handles Cannabis, Employment, and General matters from Richmond, VA.
  • Over 40 years of practice as a licensed attorney.
  • Recognized with AV Preeminent.

About Mark Sheridan Brennan, Sr.: Mark Sheridan Brennan, Sr. is a partner based in Richmond, VA. The practice focuses on Cannabis, Employment, and General. Mark has over 40 years of legal experience. Rated 5.0 out of 5 from 1 client review.

Areas of practice

Mark's practice areas in Richmond

Mark concentrates on cannabis, employment, general, health care, and litigation. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.

Cannabis cases in Richmond, Virginia

Mark takes cannabis matters in Richmond, Virginia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

Employment cases in Richmond, Virginia

Mark takes employment matters in Richmond, Virginia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

General cases in Richmond, Virginia

Mark takes general matters in Richmond, Virginia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

Health Care cases in Richmond, Virginia

Mark takes health care matters in Richmond, Virginia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

Litigation cases in Richmond, Virginia

Mark takes litigation matters in Richmond, Virginia. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Mark agrees to represent you.

Biography

Mark Sheridan Brennan, Sr., cannabis attorney serving Richmond

Mark Sheridan Brennan, Sr. is a partner based in Richmond, VA. The practice focuses on Cannabis, Employment, and General. Mark has over 40 years of legal experience. Rated 5.0 out of 5 from 1 client review. Mark works from Richmond, Virginia and takes on cannabis matters across the region.

Mark Sheridan Brennan, Sr. is a lawyer practicing general litigation, health care, hemp & medical cannabis and 7 other areas of law. Mark received a B.A. degree from University of Delaware, and has been licensed for 40 years. Mark practices in Richmond, VA.

Working with Mark on a cannabis matter

Mark Sheridan Brennan, Sr. is a lawyer practicing general litigation, health care, hemp & medical cannabis and 7 other areas of law. Mark received a B.A. degree from University of Delaware, and has been licensed for 40 years. Mark practices in Richmond, VA.

Who Mark represents

Mark reviews new inquiries case-by-case for cannabis, employment, and general matters in Richmond and the surrounding Virginia area.

Credentials

Credentials — where Mark studied and practices

  • University of Richmond J.D.

  • University of Delaware B.A. Political Science

Jurisdictions

Mark's state bar admissions

  • Pennsylvania U.S. Co

    1994 · ACTIVE

  • North Carolina

    1994 · ACTIVE

  • West Virginia

    1993 · ACTIVE

  • Virginia

    1986 · ACTIVE

Mark studied at — in University of Richmond J.D. and — in University of Delaware B.A. Political Science.

Law school and academic background

Mark completed — in University of Richmond J.D. and — in University of Delaware B.A. Political Science. Formal legal training is one signal of substantive knowledge — the day-to-day practice Mark runs in Virginia is where that training gets applied to real client questions.

Recognition

Mark's legal honors and published work

Mark has received 1 formal recognition from bar associations, industry bodies, and peer-review services.

  • AV Preeminent

Legal awards and honors

AV Preeminent.

Affiliations

Mark's professional memberships and bar associations

  • United States Army Reserves

    1992-99) Professional Liability Underwriters Society, Southeast Region - Steering Committee (2009-11) Sons of the American Revolution, Virginia Society, President (2011-12) Virginia Health Care Association, Health Planning Committee (2015-18) Appointed by · membership

Locations

Mark Sheridan Brennan, Sr.'s office in Richmond

Mark's primary office is at 707 E Main St Ste 1700, Richmond, VA, 23219-2805. In-person meetings are by appointment; a phone intake usually comes first.

Main office

707 E Main St Ste 1700

Richmond, VA 23219-2805

Open in Google Maps

Client feedback

Client reviews of Mark Sheridan Brennan, Sr. — 5.0/5 rating from 1 verified client review

Every review below is from a verified client of Mark. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing cannabis attorneys in Richmond.

5.0

1 client review

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Mark Sheridan Brennan, Sr. claims this profile.

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Hiring guide

How to hire Mark Sheridan Brennan, Sr. — what to expect in your first consultation

Working with a new cannabis attorney should feel structured. Here's how the first two conversations with Mark usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

Mark charges for the initial consult. That fee is credited toward representation if you retain Mark's office.

What to bring to your first meeting

Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Mark will tell you what matters and what doesn't.

Questions to ask a cannabis attorney in Richmond, Virginia

A short list to run through before you commit: How many cannabis matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?

Fees & payment

Fees, payment methods, and consultation options for Mark

Mark discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in cannabis practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every cannabis matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Mark confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Mark's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many cannabis practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Mark Sheridan Brennan, Sr.

  • How much does it cost to hire Mark for a cannabis case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Mark walks through the likely range during the consult so there are no surprises.

  • Does Mark offer a free consultation?

    Mark charges for the initial consult; that fee is credited toward representation if you retain Mark's office. Some cannabis attorneys offer free consults — check Mark's current terms during booking.

  • How long do cannabis cases in Virginia typically take?

    Simple cannabis matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Mark gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can Mark take my case if I'm outside Richmond?

    Mark is licensed in Virginia. Matters governed by Virginia law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Mark will tell you if the case is a fit or refer you to someone closer to your court.

  • What should I bring to my first meeting with Mark?

    Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Mark will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Mark accepting new cannabis clients right now?

    Mark's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

Cannabis attorneys serving Richmond, Alexandria and Arlington in Virginia

Mark handles cannabis matters throughout Virginia. Each city below is a direct link into the search page for verified cannabis attorneys in that community.

More counsel

If Mark's intake is full or the fit isn't right, these cannabis attorneys in Richmond handle similar matters. Every profile below is verified and open to consultations.