Mark Timothy Jansen

Mark Timothy Jansen, General Attorney in San Francisco, California

Over 42 years of legal practice · focused on General, IP, and Litigation · 4.4/5 rating from 1 verified client review

PartneratCrowell & Moring LLP

San Francisco, CA

Practicing general in San Francisco since 1984.

42+
Years practicing
4.4 ★
1 client review
1
Bar admission

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Quick answer

Mark Timothy Jansen is a partner based in San Francisco, CA. The practice focuses on General, IP, and Litigation. Mark has over 42 years of legal experience. Currently practicing at Crowell & Moring LLP. Rated 4.4 out of 5 from 1 client review.

Based in
San Francisco, CA
Experience
over 42 years
Known for
General · IP · Litigation
  • Handles General, IP, and Litigation matters from San Francisco, CA.
  • Over 42 years of practice as a licensed attorney.
  • Recognized with BV Distinguished.

About Mark Timothy Jansen: Mark Timothy Jansen is a partner based in San Francisco, CA. The practice focuses on General, IP, and Litigation. Mark has over 42 years of legal experience. Currently practicing at Crowell & Moring LLP. Rated 4.4 out of 5 from 1 client review.

Areas of practice

Practice areas handled by Mark Timothy Jansen

Mark concentrates on general, ip, litigation, trade secrets, and business. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.

General cases in San Francisco, California

Mark takes general matters in San Francisco, California. 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.

IP cases in San Francisco, California

Mark takes ip matters in San Francisco, California. 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 San Francisco, California

Mark takes litigation matters in San Francisco, California. 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.

Trade Secrets cases in San Francisco, California

Mark takes trade secrets matters in San Francisco, California. 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.

Business cases in San Francisco, California

Mark takes business matters in San Francisco, California. 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

About Mark Timothy Jansen — Over 42 years of California general experience

Mark Timothy Jansen is a partner based in San Francisco, CA. The practice focuses on General, IP, and Litigation. Mark has over 42 years of legal experience. Currently practicing at Crowell & Moring LLP. Rated 4.4 out of 5 from 1 client review.

Mark Timothy Jansen is a lawyer practicing intellectual property litigation, litigation & trial, trade secrets and 6 other areas of law. Mark received a B.A. degree from University of California, Santa Cruz in 1978, and has been licensed for 42 years. Mark practices at Crowell & Moring LLP in San Francisco, CA.

Mark's approach to general cases

Mark Timothy Jansen is a lawyer practicing intellectual property litigation, litigation & trial, trade secrets and 6 other areas of law. Mark received a B.A. degree from University of California, Santa Cruz in 1978, and has been licensed for 42 years. Mark practices at Crowell & Moring LLP in San Francisco, CA.

The kind of cases Mark takes

Mark reviews new inquiries case-by-case for general, ip, and litigation matters in San Francisco and the surrounding California area.

Credentials

Mark Timothy Jansen's legal education and bar admissions

  • University of California, Hastings College of the Law

    J.D. · 1984

  • University of California, Santa Cruz

    B.A. Chemistry · 1978

Jurisdictions

Mark's state bar admissions

  • California U.S. Supr

    1984 · ACTIVE

Mark studied at J.D. in University of California, Hastings College of the Law and B.A. Chemistry in University of California, Santa Cruz.

Law school and academic background

Mark completed J.D. in University of California, Hastings College of the Law and B.A. Chemistry in University of California, Santa Cruz. Formal legal training is one signal of substantive knowledge — the day-to-day practice Mark runs in California is where that training gets applied to real client questions.

Recognition

Awards, publications, and recognition of Mark Timothy Jansen

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

  • BV Distinguished

Legal awards and honors

BV Distinguished.

Locations

Mark Timothy Jansen's office in San Francisco

Mark's primary office is at 3 Embarcadero Cntr., 26th Fl, San Francisco, CA, 94111. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Crowell & Moring LLP

3 Embarcadero Cntr., 26th Fl

San Francisco, CA 94111

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Client feedback

Client reviews of Mark Timothy Jansen — 4.4/5 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 general attorneys in San Francisco.

4.4

1 client review

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Mark Timothy Jansen claims this profile.

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Hiring guide

How to hire Mark Timothy Jansen — what to expect in your first consultation

Working with a new general 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 general attorney in San Francisco, California

A short list to run through before you commit: How many general 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 general practice — ask which fits.

Hourly rates, contingency fees, and flat-fee options

Every general 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 general practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Mark Timothy Jansen

  • How much does it cost to hire Mark for a general 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 general attorneys offer free consults — check Mark's current terms during booking.

  • How long do general cases in California typically take?

    Simple general 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 San Francisco?

    Mark is licensed in California. Matters governed by California 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 general 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

General attorneys serving San Francisco, Los Angeles and San Diego in California

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

More counsel

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