Christopher Thomas Casamassima, ADR Attorney in Los Angeles, California
Over 26 years of legal practice · focused on ADR, Business, and Class Action · 5.0/5 rating from 16 verified client reviews
PartneratWilmerHale
Los Angeles, CA
Practicing adr in Los Angeles since 2000.
- 26+
- Years practicing
- 5.0 ★
- 16 client reviews
- 2
- Bar admissions
Are you Christopher Thomas Casamassima?
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Quick answer
Christopher Thomas Casamassima is a partner based in Los Angeles, CA. The practice focuses on ADR, Business, and Class Action. Christopher has over 26 years of legal experience. Currently practicing at WilmerHale. Rated 5.0 out of 5 from 16 client reviews.
- Based in
- Los Angeles, CA
- Experience
- over 26 years
- Known for
- ADR · Business · Class Action
- Handles ADR, Business, and Class Action matters from Los Angeles, CA.
- Over 26 years of practice as a licensed attorney.
- Recognized with Peer Reviewed.
About Christopher Thomas Casamassima: Christopher Thomas Casamassima is a partner based in Los Angeles, CA. The practice focuses on ADR, Business, and Class Action. Christopher has over 26 years of legal experience. Currently practicing at WilmerHale. Rated 5.0 out of 5 from 16 client reviews.
Areas of practice
Practice areas handled by Christopher Thomas Casamassima
Christopher concentrates on adr, business, class action, consumer, and contracts. Each area below outlines the kind of case Christopher handles, typical outcomes to expect, and how the intake process starts.
ADR
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Business
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Class Action
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Consumer
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Contracts
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Criminal Defense
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Environmental
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General
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Government
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Litigation
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ADR cases in Los Angeles, California
Christopher takes adr 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 Christopher agrees to represent you.
Business cases in Los Angeles, California
Christopher 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 Christopher agrees to represent you.
Class Action cases in Los Angeles, California
Christopher takes class action 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 Christopher agrees to represent you.
Consumer cases in Los Angeles, California
Christopher takes consumer 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 Christopher agrees to represent you.
Contracts cases in Los Angeles, California
Christopher takes contracts 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 Christopher agrees to represent you.
Biography
About Christopher Thomas Casamassima — Over 26 years of California adr experience
Christopher Thomas Casamassima is a partner based in Los Angeles, CA. The practice focuses on ADR, Business, and Class Action. Christopher has over 26 years of legal experience. Currently practicing at WilmerHale. Rated 5.0 out of 5 from 16 client reviews.
Mr. Christopher Thomas Casamassima is a lawyer practicing litigation, antitrust & competition, litigation/controversy and 12 other areas of law. Christopher received a B.A. degree from University of Pennsylvania in 1997, and has been licensed for 26 years. Christopher practices at WilmerHale in Los Angeles, CA.
How Christopher handles adr matters
Mr. Christopher Thomas Casamassima is a lawyer practicing litigation, antitrust & competition, litigation/controversy and 12 other areas of law. Christopher received a B.A. degree from University of Pennsylvania in 1997, and has been licensed for 26 years. Christopher practices at WilmerHale in Los Angeles, CA.
Who Christopher represents
Christopher reviews new inquiries case-by-case for adr, business, and class action matters in Los Angeles and the surrounding California area.
Credentials
Christopher Thomas Casamassima's legal education and bar admissions
University of California School of Law, Los Angeles
J.D. · 2000
University of Pennsylvania
B.A. History · 1997
Jurisdictions
Christopher's state bar admissions
District of Columbia
2007 · ACTIVE
California
2000 · ACTIVE
Christopher studied at J.D. in University of California School of Law, Los Angeles and B.A. History in University of Pennsylvania.
Law school and academic background
Christopher completed J.D. in University of California School of Law, Los Angeles and B.A. History in University of Pennsylvania. Formal legal training is one signal of substantive knowledge — the day-to-day practice Christopher runs in California is where that training gets applied to real client questions.
Recognition
Awards, publications, and recognition of Christopher Thomas Casamassima
Christopher has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
Peer Reviewed
Legal awards and honors
Peer Reviewed.
Affiliations
Christopher's professional memberships and bar associations
Los Angeles County and American Bar Associations State Bar of California The District of Columbia Bar
membership
Locations
Christopher Thomas Casamassima's office in Los Angeles
Christopher's primary office is at 350 South Grand Avenue, Suite 2100, Los Angeles, CA, 90071. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Christopher Thomas Casamassima — 5.0/5 rating from 16 verified client reviews
Every review below is from a verified client of Christopher. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing adr attorneys in Los Angeles.
5.0
16 client reviews
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Christopher Thomas Casamassima claims this profile.
Read all reviewsHiring guide
How to hire Christopher Thomas Casamassima — what to expect in your first consultation
Working with a new adr attorney should feel structured. Here's how the first two conversations with Christopher usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Christopher charges for the initial consult. That fee is credited toward representation if you retain Christopher'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; Christopher will tell you what matters and what doesn't.
Questions to ask a adr attorney in Los Angeles, California
A short list to run through before you commit: How many adr 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 Christopher
Christopher discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in adr practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every adr 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. Christopher confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Christopher's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many adr practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Christopher Thomas Casamassima
How much does it cost to hire Christopher for a adr case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Christopher walks through the likely range during the consult so there are no surprises.
Does Christopher offer a free consultation?
Christopher charges for the initial consult; that fee is credited toward representation if you retain Christopher's office. Some adr attorneys offer free consults — check Christopher's current terms during booking.
How long do adr cases in California typically take?
Simple adr 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. Christopher gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Christopher take my case if I'm outside Los Angeles?
Christopher 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 — Christopher 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 Christopher?
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. Christopher will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Christopher accepting new adr clients right now?
Christopher's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
ADR attorneys serving Los Angeles, San Francisco and San Diego in California
Christopher handles adr matters throughout California. Each city below is a direct link into the search page for verified adr 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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