John W. Shenk

John W. Shenk, Business Attorney in Los Angeles, California

Over 18 years of legal practice · focused on Business, Cannabis, and Litigation

Founding PartneratMancini Shenk LLP

Los Angeles, CA

Practicing business in Los Angeles since 2008.

18+
Years practicing
1
Bar admission

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Quick answer

John W. Shenk is a founding partner based in Los Angeles, CA. The practice focuses on Business, Cannabis, and Litigation. John has over 18 years of legal experience. Currently practicing at Mancini Shenk LLP.

Based in
Los Angeles, CA
Experience
over 18 years
Known for
Business · Cannabis · Litigation
  • Handles Business, Cannabis, and Litigation matters from Los Angeles, CA.
  • Over 18 years of practice as a licensed attorney.

About John W. Shenk: John W. Shenk is a founding partner based in Los Angeles, CA. The practice focuses on Business, Cannabis, and Litigation. John has over 18 years of legal experience. Currently practicing at Mancini Shenk LLP.

Areas of practice

John's practice areas in Los Angeles

John concentrates on business, cannabis, and litigation. Each area below outlines the kind of case John handles, typical outcomes to expect, and how the intake process starts.

Business cases in Los Angeles, California

John 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 John agrees to represent you.

Cannabis cases in Los Angeles, California

John takes cannabis 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 John agrees to represent you.

Litigation cases in Los Angeles, California

John 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 John agrees to represent you.

Biography

John W. Shenk, business attorney serving Los Angeles

John W. Shenk is a founding partner based in Los Angeles, CA. The practice focuses on Business, Cannabis, and Litigation. John has over 18 years of legal experience. Currently practicing at Mancini Shenk LLP. John works from Los Angeles, California and takes on business matters across the region.

Founding Partner John W. Shenk is a litigator focused on shareholder and derivative, cannabis, and business disputes. With extensive experience in partnership disputes and the personal nature of fights within businesses, John has come to refer to his specialty as “business divorce.”

John helps his clients understand their rights and assert them effectively, whether they be partners, shareholders in a corporation, members of an LLC, or joint venturers of any manner. In some instances, this requires diplomatic negotiation or out of court arbitration. In others, it may demand bare-knuckled litigation. In all cases it is a strategic process that John navigates with agility, finesse, and force when needed.

John has handled some of the most prominent shareholder and investor litigation in the legal cannabis industry. These complex disputes have their own shape and character, and John’s successes on behalf of clients confronting managers intent upon self-dealing and, at times, outright fraud, place him at the forefront of litigation in the legal cannabis industry.

In these contexts, John has extensive experience with partnership and shareholder disputes, breach of fiduciary duty and fraud claims, unfair competition, trade secret misappropriation, and real estate litigation.

Representative Matters

• Vindicated investor right to exercise option to acquire shares in start-up cannabis company resulting in a substantial cash payout along with shares in the company.

• Asserted member / shareholder rights in one of the country’s largest cannabis ventures against self-dealing managers, resulting in client obtaining 20x the shares managers attempted to distribute.

• On less than 24-hour turnaround, defeated surprise application for temporary restraining order brought against cannabis business by one of its investors.

• Defended real estate developer against claims by former business partner seeking to share profits in a later transaction; defeated all claims in their entirety.

• Defended LLC manager against investor derivative claims of self-dealing and breach of fiduciary duty; defeated all claims in their entirety.

• Pursued LLC manager of cannabis extraction company who absconded with investor funds.

• Resolved board member / shareholder deadlock in closely held corporation by negotiating terms for appointment of neutral board member, permitting manufacturing company to emerge out of operational stagnation.

• Removed a toxic shareholder / manager who was crippling a company’s growth.

• Enforced trade secret and confidentiality rights of partnership against expelled toxic partner; enforcement of non-compete agreement under California law.

• Negotiated the terms for quickly dissolving a law partnership for partner to move to a more lucrative opportunity without losing value or breaching duties to partners or clients.

• Provided strategic advice to option-holding employee in departure from current employment to start entrepreneurial venture without losing upside potential in existing company or exposing himself to claims of trade secret theft.

Education

John attended Stanford University, earning a Bachelor of Arts in 2001. John earned his Juris Doctor and his M.B.A. from the University of Southern California’s Gould School of Law and Marshall School of Business, respectively, in 2008.

Bar Admissions

John is a member in good standing of the State Bar of California, admitted to practice before the Supreme Court of California and all of California’s lower state courts, each of the United States District Courts for the Southern, Central, Eastern and Northern Districts of California, and the United States Court of Appeals for the Ninth Circuit.

Professional Affiliations

John is a member of ProVisors, the Los Angeles County Bar Association, and the International Cannabis Bar Association.

John's approach to business cases

Founding Partner John W. Shenk is a litigator focused on shareholder and derivative, cannabis, and business disputes. With extensive experience in partnership disputes and the personal nature of fights within businesses, John has come to refer to his specialty as “business divorce.” John helps his clients understand their rights and assert them effectively, whether they be partners, shareholders…

Clients John works with

John reviews new inquiries case-by-case for business, cannabis, and litigation matters in Los Angeles and the surrounding California area.

Credentials

Credentials — where John studied and practices

  • University of Southern California

    J.D. · 2008

  • Stanford University

    B.A. University · 2001

Jurisdictions

John's state bar admissions

  • California

    2008 · ACTIVE

John studied at J.D. in University of Southern California and B.A. University in Stanford University.

Law school and academic background

John completed J.D. in University of Southern California and B.A. University in Stanford University. Formal legal training is one signal of substantive knowledge — the day-to-day practice John runs in California is where that training gets applied to real client questions.

Locations

John W. Shenk's office in Los Angeles

John'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.

Main office

Mancini Shenk LLP

1925 Century Park East, Suite 1700

Los Angeles, CA 90067

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Client feedback

Client reviews of John W. Shenk

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Hiring guide

How to hire John W. Shenk — what to expect in your first consultation

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

Consultation formats and pricing

John charges for the initial consult. That fee is credited toward representation if you retain John'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; John 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 John

John 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. John confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

John'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 John W. Shenk

  • How much does it cost to hire John for a business case?

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

  • Does John offer a free consultation?

    John charges for the initial consult; that fee is credited toward representation if you retain John's office. Some business attorneys offer free consults — check John'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. John gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can John take my case if I'm outside Los Angeles?

    John 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 — John 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 John?

    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. John will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is John accepting new business clients right now?

    John'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

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

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