Frank S Caplan, Family Law Attorney in Diamond Bar, California
Over 56 years of legal practice · focused on Family Law, General, and Litigation · 4.4/5 rating from 1 verified client review
MemberatLaw Office of Frank S. Caplan
Diamond Bar, CA
Practicing family law in Diamond Bar since 1970.
- 56+
- Years practicing
- 4.4 ★
- 1 client review
- 2
- Bar admissions
Practices in
Are you Frank S Caplan?
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Quick answer
Frank S Caplan is a member based in Diamond Bar, CA. The practice focuses on Family Law, General, and Litigation. Frank has over 56 years of legal experience. Currently practicing at Law Office of Frank S. Caplan. Rated 4.4 out of 5 from 1 client review.
- Based in
- Diamond Bar, CA
- Experience
- over 56 years
- Known for
- Family Law · General · Litigation
- Handles Family Law, General, and Litigation matters from Diamond Bar, CA.
- Over 56 years of practice as a licensed attorney.
- Recognized with BV Distinguished.
About Frank S Caplan: Frank S Caplan is a member based in Diamond Bar, CA. The practice focuses on Family Law, General, and Litigation. Frank has over 56 years of legal experience. Currently practicing at Law Office of Frank S. Caplan. Rated 4.4 out of 5 from 1 client review.
Areas of practice
Practice areas handled by Frank S Caplan
Frank concentrates on family law, general, litigation, and personal injury. Each area below outlines the kind of case Frank handles, typical outcomes to expect, and how the intake process starts.
Family Law
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General
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Litigation
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Personal Injury
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Family Law cases in Diamond Bar, California
Frank takes family law matters in Diamond Bar, 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 Frank agrees to represent you.
General cases in Diamond Bar, California
Frank takes general matters in Diamond Bar, 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 Frank agrees to represent you.
Litigation cases in Diamond Bar, California
Frank takes litigation matters in Diamond Bar, 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 Frank agrees to represent you.
Personal Injury cases in Diamond Bar, California
Frank takes personal injury matters in Diamond Bar, 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 Frank agrees to represent you.
Biography
About Frank S Caplan — Over 56 years of California family law experience
Frank S Caplan is a member based in Diamond Bar, CA. The practice focuses on Family Law, General, and Litigation. Frank has over 56 years of legal experience. Currently practicing at Law Office of Frank S. Caplan. Rated 4.4 out of 5 from 1 client review.
Frank S Caplan is a lawyer practicing civil litigation, family law, construction and 1 other area of law. Frank received a B.A. degree from Brooklyn College of the City University of New York in 1966, and has been licensed for 56 years. Frank practices at Law Office of Frank S. Caplan in Diamond Bar, CA.
Frank's approach to family law cases
Frank S Caplan is a lawyer practicing civil litigation, family law, construction and 1 other area of law. Frank received a B.A. degree from Brooklyn College of the City University of New York in 1966, and has been licensed for 56 years. Frank practices at Law Office of Frank S. Caplan in Diamond Bar, CA.
Clients Frank works with
Frank reviews new inquiries case-by-case for family law, general, and litigation matters in Diamond Bar and the surrounding California area.
Credentials
Frank S Caplan's legal education and bar admissions
California Western School of Law
J.D. · 1969
Brooklyn College of the City University of New York
B.A. · 1966
Jurisdictions
Frank's state bar admissions
California
1973 · ACTIVE
New Jersey
1970 · ACTIVE
Frank studied at J.D. in California Western School of Law and B.A. in Brooklyn College of the City University of New York.
Law school and academic background
Frank completed J.D. in California Western School of Law and B.A. in Brooklyn College of the City University of New York. Formal legal training is one signal of substantive knowledge — the day-to-day practice Frank runs in California is where that training gets applied to real client questions.
Recognition
Awards, publications, and recognition of Frank S Caplan
Frank has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
BV Distinguished
Legal awards and honors
BV Distinguished.
Locations
Frank S Caplan's office in Diamond Bar
Frank's primary office is at 3333 S. Brea Canyon Rd., Ste. 121, Diamond Bar, CA, 91765-3783. In-person meetings are by appointment; a phone intake usually comes first.
Law Office of Frank S. Caplan
3333 S. Brea Canyon Rd., Ste. 121
Diamond Bar, CA 91765-3783
Open in Google MapsClient feedback
Client reviews of Frank S Caplan — 4.4/5 rating from 1 verified client review
Every review below is from a verified client of Frank. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing family law attorneys in Diamond Bar.
4.4
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Frank S Caplan claims this profile.
Read all reviewsHiring guide
How to hire Frank S Caplan — what to expect in your first consultation
Working with a new family law attorney should feel structured. Here's how the first two conversations with Frank usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Frank charges for the initial consult. That fee is credited toward representation if you retain Frank'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; Frank will tell you what matters and what doesn't.
Questions to ask a family law attorney in Diamond Bar, California
A short list to run through before you commit: How many family law 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 Frank
Frank discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in family law practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every family law 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. Frank confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Frank's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many family law practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Frank S Caplan
How much does it cost to hire Frank for a family law case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Frank walks through the likely range during the consult so there are no surprises.
Does Frank offer a free consultation?
Frank charges for the initial consult; that fee is credited toward representation if you retain Frank's office. Some family law attorneys offer free consults — check Frank's current terms during booking.
How long do family law cases in California typically take?
Simple family law 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. Frank gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Frank take my case if I'm outside Diamond Bar?
Frank 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 — Frank 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 Frank?
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. Frank will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Frank accepting new family law clients right now?
Frank's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Family Law attorneys serving Diamond Bar, Los Angeles and San Francisco in California
Frank handles family law matters throughout California. Each city below is a direct link into the search page for verified family law attorneys in that community.
- Diamond Bar232 attorneys
- 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
More counsel
Other top-rated family law attorneys in California
If Frank's intake is full or the fit isn't right, these family law attorneys in Diamond Bar handle similar matters. Every profile below is verified and open to consultations.

Michael Shemtoub
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Farid Yaghoubtil
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Douglas MacMillan Borthwick
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David Payab, Esq.
Woodland Hills, California
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Arsen Sarapinian, Esq.
Beverly Hills, California
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Jonathan P. Brian
Garden Grove, California
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