Mark Jeffrey Welshimer

Mark Jeffrey Welshimer, Business Attorney in New York

Over 49 years of legal practice · focused on Business, General, and Securities

Practicing business in New York since 1977.

49+
Years practicing
1
Bar admission

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Quick answer

Mark Jeffrey Welshimer is a partner based in New York, NY. The practice focuses on Business, General, and Securities. Mark has over 49 years of legal experience. Currently practicing at Sullivan And Cromwell Llp.

Based in
New York, NY
Experience
over 49 years
Known for
Business · General · Securities
  • Handles Business, General, and Securities matters from New York, NY.
  • Over 49 years of practice as a licensed attorney.

About Mark Jeffrey Welshimer: Mark Jeffrey Welshimer is a partner based in New York, NY. The practice focuses on Business, General, and Securities. Mark has over 49 years of legal experience. Currently practicing at Sullivan And Cromwell Llp.

Areas of practice

Legal matters Mark takes on

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

Business cases in New York

Mark takes business matters in New York. 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 New York

Mark takes general matters in New York. 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.

Securities cases in New York

Mark takes securities matters in New York. 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

Meet Mark Jeffrey Welshimer — business lawyer in New York

Mark Jeffrey Welshimer is a partner based in New York, NY. The practice focuses on Business, General, and Securities. Mark has over 49 years of legal experience. Currently practicing at Sullivan And Cromwell Llp.

Mark Jeffrey Welshimer is a lawyer practicing bank regulatory, financial services, broker-dealer and 8 other areas of law. Mark received a A.B. degree from Harvard University in 1973, and has been licensed for 49 years. Mark practices at Sullivan & Cromwell LLP in New York, NY and 1 other location.

Working with Mark on a business matter

Mark Jeffrey Welshimer is a lawyer practicing bank regulatory, financial services, broker-dealer and 8 other areas of law. Mark received a A.B. degree from Harvard University in 1973, and has been licensed for 49 years. Mark practices at Sullivan & Cromwell LLP in New York, NY and 1 other location.

Who Mark represents

Mark reviews new inquiries case-by-case for business, general, and securities matters across New York.

Credentials

Education, bar admissions, and languages

  • Harvard Law School

    J.D. · 1976

  • Harvard University

    A.B. · 1973

Jurisdictions

Mark's state bar admissions

  • New York

    1977 · ACTIVE

Mark studied at J.D. in Harvard Law School and A.B. in Harvard University.

Law school and academic background

Mark completed J.D. in Harvard Law School and A.B. in Harvard University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Mark runs in New York is where that training gets applied to real client questions.

Locations

Mark Jeffrey Welshimer's office in New York

Mark's primary office is at 125 Broad Street, New York, NY, 10004-2498. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Sullivan And Cromwell Llp

125 Broad Street

New York, NY 10004-2498

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Client feedback

Client reviews of Mark Jeffrey Welshimer

Mark has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.

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Hiring guide

How to hire Mark Jeffrey Welshimer — what to expect in your first consultation

Working with a new business 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 business attorney in New York

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

Hourly rates, contingency fees, and flat-fee options

Every business 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 business practices work with clients on structured schedules.

Frequently asked

Frequently asked questions about Mark Jeffrey Welshimer

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

  • How long do business cases in New York typically take?

    Simple business 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 New York?

    Mark is licensed in New York. Matters governed by New York 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 business 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

Business attorneys serving Albany and Brooklyn in New York

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

More counsel

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