Clark Mojonier Trevor, Immigration Attorney in San Francisco, California
Over 42 years of legal practice · focused on Immigration, M&A, and Prenup · 5.0/5 rating from 1 verified client review
MemberatE&M Mayock
San Francisco, CA
Practicing immigration in San Francisco since 1984.
- 42+
- Years practicing
- 5.0 ★
- 1 client review
- 2
- Bar admissions
Practices in
Are you Clark Mojonier Trevor?
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Quick answer
Clark Mojonier Trevor is a member based in San Francisco, CA. The practice focuses on Immigration, M&A, and Prenup. Clark has over 42 years of legal experience. Currently practicing at E&M Mayock. Rated 5.0 out of 5 from 1 client review.
- Based in
- San Francisco, CA
- Experience
- over 42 years
- Known for
- Immigration · M&A · Prenup
- Handles Immigration, M&A, and Prenup matters from San Francisco, CA.
- Over 42 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Clark Mojonier Trevor: Clark Mojonier Trevor is a member based in San Francisco, CA. The practice focuses on Immigration, M&A, and Prenup. Clark has over 42 years of legal experience. Currently practicing at E&M Mayock. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Clark's practice areas in San Francisco
Clark concentrates on immigration, m&a, and prenup. Each area below outlines the kind of case Clark handles, typical outcomes to expect, and how the intake process starts.
Immigration
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M&A
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Prenup
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Immigration cases in San Francisco, California
Clark takes immigration matters in San Francisco, 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 Clark agrees to represent you.
M&A cases in San Francisco, California
Clark takes m&a matters in San Francisco, 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 Clark agrees to represent you.
Prenup cases in San Francisco, California
Clark takes prenup matters in San Francisco, 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 Clark agrees to represent you.
Biography
Clark Mojonier Trevor, immigration attorney serving San Francisco
Clark Mojonier Trevor is a member based in San Francisco, CA. The practice focuses on Immigration, M&A, and Prenup. Clark has over 42 years of legal experience. Currently practicing at E&M Mayock. Rated 5.0 out of 5 from 1 client review. Clark works from San Francisco, California and takes on immigration matters across the region.
Clark Mojonier Trevor is a lawyer practicing immigration, marriage / prenuptials, mergers / acquisitions. Clark received a B.A. degree from University of the Pacific in 1971, and has been licensed for 42 years. Clark practices at E&M Mayock in San Francisco, CA.
Clark's approach to immigration cases
Clark Mojonier Trevor is a lawyer practicing immigration, marriage / prenuptials, mergers / acquisitions. Clark received a B.A. degree from University of the Pacific in 1971, and has been licensed for 42 years. Clark practices at E&M Mayock in San Francisco, CA.
Clients Clark works with
Clark reviews new inquiries case-by-case for immigration, m&a, and prenup matters in San Francisco and the surrounding California area.
Credentials
Credentials — where Clark studied and practices
Lincoln University Law School
J.D. · 1984
University of the Pacific
B.A. · 1971
Jurisdictions
Clark's state bar admissions
U.S. District Court,
1984 · ACTIVE
California
1984 · ACTIVE
Clark studied at J.D. in Lincoln University Law School and B.A. in University of the Pacific.
Law school and academic background
Clark completed J.D. in Lincoln University Law School and B.A. in University of the Pacific. Formal legal training is one signal of substantive knowledge — the day-to-day practice Clark runs in California is where that training gets applied to real client questions.
Recognition
Clark's legal honors and published work
Clark has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Locations
Clark Mojonier Trevor's office in San Francisco
Clark's primary office is at 220 Sansome St., 12th Fl., San Francisco, CA, 94104-2327. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Clark Mojonier Trevor — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Clark. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing immigration attorneys in San Francisco.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Clark Mojonier Trevor claims this profile.
Read all reviewsHiring guide
How to hire Clark Mojonier Trevor — what to expect in your first consultation
Working with a new immigration attorney should feel structured. Here's how the first two conversations with Clark usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Clark charges for the initial consult. That fee is credited toward representation if you retain Clark'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; Clark will tell you what matters and what doesn't.
Questions to ask a immigration attorney in San Francisco, California
A short list to run through before you commit: How many immigration 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 Clark
Clark discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in immigration practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every immigration 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. Clark confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Clark's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many immigration practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Clark Mojonier Trevor
How much does it cost to hire Clark for a immigration case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Clark walks through the likely range during the consult so there are no surprises.
Does Clark offer a free consultation?
Clark charges for the initial consult; that fee is credited toward representation if you retain Clark's office. Some immigration attorneys offer free consults — check Clark's current terms during booking.
How long do immigration cases in California typically take?
Simple immigration 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. Clark gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Clark take my case if I'm outside San Francisco?
Clark 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 — Clark 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 Clark?
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. Clark will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Clark accepting new immigration clients right now?
Clark's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Immigration attorneys serving San Francisco, Los Angeles and San Diego in California
Clark handles immigration matters throughout California. Each city below is a direct link into the search page for verified immigration attorneys in that community.
- San Francisco26,380 attorneys
- Los Angeles39,975 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
More counsel
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If Clark's intake is full or the fit isn't right, these immigration attorneys in San Francisco handle similar matters. Every profile below is verified and open to consultations.





