
Mark Sedlander, Business Attorney in Los Angeles, California
Over 17 years of legal practice · focused on Business, Government, and Litigation
Of CounselatMancini Shenk LLP
Los Angeles, CA
Practicing business in Los Angeles since 2009.
- 17+
- Years practicing
- 2
- Bar admissions
Practices in
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Quick answer
Mark Sedlander is an of counsel based in Los Angeles, CA. The practice focuses on Business, Government, and Litigation. Mark has over 17 years of legal experience. Currently practicing at Mancini Shenk LLP.
- Based in
- Los Angeles, CA
- Experience
- over 17 years
- Known for
- Business · Government · Litigation
- Handles Business, Government, and Litigation matters from Los Angeles, CA.
- Over 17 years of practice as a licensed attorney.
About Mark Sedlander: Mark Sedlander is an of counsel based in Los Angeles, CA. The practice focuses on Business, Government, and Litigation. Mark has over 17 years of legal experience. Currently practicing at Mancini Shenk LLP.
Areas of practice
Mark's practice areas in Los Angeles
Mark concentrates on business, government, litigation, and white collar. Each area below outlines the kind of case Mark handles, typical outcomes to expect, and how the intake process starts.
Business
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Government
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Litigation
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White Collar
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Business cases in Los Angeles, California
Mark takes business matters in Los Angeles, 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.
Government cases in Los Angeles, California
Mark takes government matters in Los Angeles, 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 Los Angeles, California
Mark takes litigation matters in Los Angeles, 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.
White Collar cases in Los Angeles, California
Mark takes white collar matters in Los Angeles, 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
Mark Sedlander, business attorney serving Los Angeles
Mark Sedlander is an of counsel based in Los Angeles, CA. The practice focuses on Business, Government, and Litigation. Mark has over 17 years of legal experience. Currently practicing at Mancini Shenk LLP. Mark works from Los Angeles, California and takes on business matters across the region.
Mark Sedlander is a trial attorney and litigator whose practice consists of white collar defense, government investigations, and business litigation. Mr. Sedlander has represented corporate clients and individuals, including executives, management personnel, and other corporate employees. His practice involves a wide range of industries, including health care, technology, commercial cannabis, import/export licensing violations in the commercial and national security context, and aviation management. He defends clients accused of wire fraud, bank fraud, mail fraud, bankruptcy fraud, mortgage fraud, securities fraud, violations of the Racketeer Influenced and Corrupt Organizations Act, and other white collar criminal and regulatory offenses. He regularly negotiates with the Department of Justice and other prosecuting and investigative agencies. He has successfully defended clients in federal and state investigations, and won significant, high-stakes courtroom victories. His civil litigation practice involves business disputes and other matters in state and federal courts and in arbitration proceedings.
Before joining Mancini Shenk LLP, Mr. Sedlander represented clients charged with federal criminal offenses with the Office of the Federal Public Defender in the Central District of California. He handled complex commercial matters as an Associate in the litigation department at a New York City law firm and clerked for the Honorable Fernando M. Olguin in the United States District Court for the Central District of California in Los Angeles.
Representative Matters
• Represented former executive and senior management of a large medical management services company during an investigation by California state regulators, the United States Department of Health & Human • Services, and the United States Department of Justice.
• Obtained dismissal on due process grounds of a federal criminal case alleging illegal reentry into the United States.
• Significant experience defending against Racketeer Influenced and Corrupt Organizations Conspiracy (“RICO”) charges.
• Prevailed on appeal on behalf of a medical partnership in anti-SLAPP litigation, with the California Court of Appeal affirming the trial court’s finding that claims against the partnership were barred.
• Obtained a government dismissal following a motion to dismiss on grounds that the indictment and police ballistics report failed to allege facts demonstrating that a damaged pistol was a “firearm” under the relevant criminal statute.
• Obtained a favorable settlement defending a large hospital group in a contract dispute with a national healthcare provider.
• Worked as co-counsel with the Office of the Michigan Attorney General and Solicitor General on behalf of the Michigan Workers’ Compensation Insurance Agency in a Second Circuit appeal, arguing for dismissal on grounds of state sovereign immunity in bankruptcy proceedings.
Education
Mark earned his J.D. at Georgetown Law. He received his undergraduate degree with high honors from the University of California, Santa Barbara, and is a member of Phi Beta Kappa.
Bar Admissions
Mark is a member in good standing of the State Bars of California and New York, admitted to practice before the Supreme Court of California and all of California’s lower state courts, the New York Court of Appeals and all of New York’s lower state courts, the United States District Court for the Central District of California, the United States District Courts for the Eastern and Southern Districts of New York, and the United States Court of Appeals for the Ninth Circuit.
Professional Affiliations
Mark is a member of The Century City Bar Association Board of Governors; The Federal Bar Association, Criminal Law and Federal Litigation Sections; The American Bar Association, Criminal Justice and Business Law Sections, White Collar Crime Committee; and The Los Angeles County Bar Association, Criminal Justice, Healthcare Law, and Litigation Sections.
Working with Mark on a business matter
Mark Sedlander is a trial attorney and litigator whose practice consists of white collar defense, government investigations, and business litigation. Mr. Sedlander has represented corporate clients and individuals, including executives, management personnel, and other corporate employees. His practice involves a wide range of industries, including health care, technology, commercial cannabis,…
Clients Mark works with
Mark reviews new inquiries case-by-case for business, government, and litigation matters in Los Angeles and the surrounding California area.
Credentials
Credentials — where Mark studied and practices
Georgetown University
J.D. · 2008
University of California, Santa Barbara
B.A. · 2003
Jurisdictions
Mark's state bar admissions
California U.S. Dist
2015 · ACTIVE
New York
2009 · ACTIVE
Mark studied at J.D. in Georgetown University and B.A. in University of California, Santa Barbara.
Law school and academic background
Mark completed J.D. in Georgetown University and B.A. in University of California, Santa Barbara. 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.
Affiliations
Mark's professional memberships and bar associations
American Bar Association The Association of the Bar of the City of New York
membership
Locations
Mark Sedlander's office in Los Angeles
Mark's primary office is at 1925 Century Park East, Suite 1700, Los Angeles, CA, 90067. In-person meetings are by appointment; a phone intake usually comes first.
Mancini Shenk LLP
1925 Century Park East, Suite 1700
Los Angeles, CA 90067
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Client reviews of Mark Sedlander
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Schedule your consultationHiring guide
How to hire Mark Sedlander — 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 Los Angeles, California
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 Sedlander
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 California 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 Los Angeles?
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 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 Los Angeles, San Francisco and San Diego in California
Mark handles business matters throughout California. Each city below is a direct link into the search page for verified business attorneys in that community.
- Los Angeles39,975 attorneys
- San Francisco26,380 attorneys
- San Diego16,903 attorneys
- Sacramento10,561 attorneys
- Irvine6,831 attorneys
- Oakland5,709 attorneys
- San Jose5,009 attorneys
- Palo Alto4,084 attorneys
- Beverly Hills3,348 attorneys
- Newport Beach3,106 attorneys
- Pasadena2,894 attorneys
- Santa Monica2,756 attorneys
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