Louis N. Marks, Business Attorney in Philadelphia, Pennsylvania
Over 57 years of legal practice · focused on Business, Contracts, and General · 5.0/5 rating from 1 verified client review
ShareholderatZarwin · Baum · DeVito · Kaplan · Schaer · Toddy, P.C.
Philadelphia, PA
Practicing business in Philadelphia since 1969.
- 57+
- Years practicing
- 5.0 ★
- 1 client review
- 4
- Bar admissions
Are you Louis N. Marks?
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Quick answer
Louis N. Marks is a shareholder based in Philadelphia, PA. The practice focuses on Business, Contracts, and General. Louis has over 57 years of legal experience. Currently practicing at Zarwin · Baum · DeVito · Kaplan · Schaer · Toddy, P.C.. Rated 5.0 out of 5 from 1 client review.
- Based in
- Philadelphia, PA
- Experience
- over 57 years
- Known for
- Business · Contracts · General
- Handles Business, Contracts, and General matters from Philadelphia, PA.
- Over 57 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Louis N. Marks: Louis N. Marks is a shareholder based in Philadelphia, PA. The practice focuses on Business, Contracts, and General. Louis has over 57 years of legal experience. Currently practicing at Zarwin · Baum · DeVito · Kaplan · Schaer · Toddy, P.C.. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Legal matters Louis takes on
Louis concentrates on business, contracts, and general. Each area below outlines the kind of case Louis handles, typical outcomes to expect, and how the intake process starts.
Business
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Contracts
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General
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Business cases in Philadelphia, Pennsylvania
Louis takes business matters in Philadelphia, Pennsylvania. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Louis agrees to represent you.
Contracts cases in Philadelphia, Pennsylvania
Louis takes contracts matters in Philadelphia, Pennsylvania. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Louis agrees to represent you.
General cases in Philadelphia, Pennsylvania
Louis takes general matters in Philadelphia, Pennsylvania. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Louis agrees to represent you.
Biography
Meet Louis N. Marks — business lawyer in Philadelphia
Louis N. Marks is a shareholder based in Philadelphia, PA. The practice focuses on Business, Contracts, and General. Louis has over 57 years of legal experience. Currently practicing at Zarwin · Baum · DeVito · Kaplan · Schaer · Toddy, P.C.. Rated 5.0 out of 5 from 1 client review.
Louis N. Marks is a lawyer practicing contracts & agreements, debt & lending agreements, business practice group and 1 other area of law. Louis received a B.S. degree from University of Pennsylvania in 1966, and has been licensed for 57 years. Louis practices at Zarwin · Baum · DeVito · Kaplan · Schaer · Toddy, P.C. in Philadelphia, PA.
Working with Louis on a business matter
Louis N. Marks is a lawyer practicing contracts & agreements, debt & lending agreements, business practice group and 1 other area of law. Louis received a B.S. degree from University of Pennsylvania in 1966, and has been licensed for 57 years. Louis practices at Zarwin · Baum · DeVito · Kaplan · Schaer · Toddy, P.C. in Philadelphia, PA.
Clients Louis works with
Louis reviews new inquiries case-by-case for business, contracts, and general matters in Philadelphia and the surrounding Pennsylvania area.
Credentials
Education, bar admissions, and languages
University of Pennsylvania
J.D. Economics · 1969
University of Pennsylvania
B.S. Economics · 1966
Jurisdictions
Louis's state bar admissions
U.S. Supreme Court
1989 · ACTIVE
U.S. Court of Appeal
1988 · ACTIVE
U.S. District Court,
1983 · ACTIVE
Pennsylvania
1969 · ACTIVE
Louis studied at J.D. Economics in University of Pennsylvania and B.S. Economics in University of Pennsylvania.
Law school and academic background
Louis completed J.D. Economics in University of Pennsylvania and B.S. Economics in University of Pennsylvania. Formal legal training is one signal of substantive knowledge — the day-to-day practice Louis runs in Pennsylvania is where that training gets applied to real client questions.
Recognition
Recognition and thought leadership
Louis has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Affiliations
Louis's professional memberships and bar associations
Mr
membership
Marks is an Officer of, and serves on the Board of the American Jewish Committee, and is chair of its Energy Task Force
membership
Mr
membership
Marks is a member of both the American (Developments in Business Financing Committee) and Philadelphia (Corporate, Banking and Business Law Section) Bar Associations
membership
He previously served as a board member for the Federation of Jewish Agencies and chairman of its Lawyer's Division
membership
Locations
Louis N. Marks's office in Philadelphia
Louis's primary office is at 2005 Market St., 16th Fl., Philadelphia, PA, 19103-3638. In-person meetings are by appointment; a phone intake usually comes first.
Zarwin · Baum · DeVito · Kaplan · Schaer · Toddy, P.C.
2005 Market St., 16th Fl.
Philadelphia, PA 19103-3638
Open in Google MapsClient feedback
Client reviews of Louis N. Marks — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Louis. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing business attorneys in Philadelphia.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Louis N. Marks claims this profile.
Read all reviewsHiring guide
How to hire Louis N. Marks — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with Louis usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Louis charges for the initial consult. That fee is credited toward representation if you retain Louis'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; Louis will tell you what matters and what doesn't.
Questions to ask a business attorney in Philadelphia, Pennsylvania
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 Louis
Louis 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. Louis confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Louis'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 Louis N. Marks
How much does it cost to hire Louis for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Louis walks through the likely range during the consult so there are no surprises.
Does Louis offer a free consultation?
Louis charges for the initial consult; that fee is credited toward representation if you retain Louis's office. Some business attorneys offer free consults — check Louis's current terms during booking.
How long do business cases in Pennsylvania 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. Louis gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Louis take my case if I'm outside Philadelphia?
Louis is licensed in Pennsylvania. Matters governed by Pennsylvania law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Louis 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 Louis?
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. Louis will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Louis accepting new business clients right now?
Louis'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 Philadelphia, Pittsburgh and Harrisburg in Pennsylvania
Louis handles business matters throughout Pennsylvania. Each city below is a direct link into the search page for verified business attorneys in that community.
More counsel
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If Louis's intake is full or the fit isn't right, these business attorneys in Philadelphia handle similar matters. Every profile below is verified and open to consultations.

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