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Marx & DuffyDivorce and family lawyer in San Francisco, CA

Marx & Duffy is a divorce and family lawyer at 155 Montgomery St #507, San Francisco, CA 94104, ranked #38 of 222 divorce and family lawyers in San Francisco and rated 4.2 from 10 Google reviews. Open Monday to Friday.

Facts on this profile come from public sources and from the firm. This is not legal advice, and contacting the firm does not make it your lawyer. Check the lawyer’s standing with the state bar or law society before you hire.

San Francisco, CAUpdated 0 paid placements in any rankingHow we rank

Call (415) 567-4111Website ↗

Key facts

Key facts about Marx & Duffy
Address155 Montgomery St #507, San Francisco, CA 94104Get directions
Phone(415) 567-4111
Websitekevinaduffy.com
HoursMonday to Friday: 9 AM – 4:30 PM
Google rating4.2 from 10 Google reviews

Practice areas

Each practice area shows the evidence we matched it on.

Service area

Serves San Francisco and 11 towns within 25 miles: Chinatown, Mission District, Noe Valley, Visitacion Valley, Daly City, Emeryville, Oakland, Alameda, Albany, Berkeley and South San Francisco.

Based in San Francisco, CAView on map

Opening hours

Opening hours for Marx & Duffy
DayHours
Monday9 AM – 4:30 PM
Tuesday9 AM – 4:30 PM
Wednesday9 AM – 4:30 PM
Thursday9 AM – 4:30 PM
Friday9 AM – 4:30 PM
SaturdayClosed
SundayClosed
  • Open evenings — no
  • Open Saturdays — no
  • Open Sundays — no

Questions about Marx & Duffy

How is Marx & Duffy ranked in San Francisco?

Marx & Duffy is ranked #38 of 222 divorce and family lawyers in San Francisco by LFR Score, with 60 out of 100 as of November 2026. The score weighs reputation, bar status, review volume, recency, availability, practice focus, proximity, claimed profile and law firms ranked reviews. No business can pay to change its rank.

What are Marx & Duffy’s hours?

Marx & Duffy is open Monday to Friday. Its listed hours are Monday to Friday, 9 AM – 4:30 PM. It is closed on Saturdays and closed on Sundays. Hours come from the business listing; holiday hours may differ.

What areas does Marx & Duffy serve?

Serves San Francisco and 11 towns within 25 miles: Chinatown, Mission District, Noe Valley, Visitacion Valley, Daly City, Emeryville, Oakland, Alameda, Albany, Berkeley and South San Francisco. The list is based on the business's location and the usual service radius for divorce and family law. Confirm your address is covered when you call.

What do Google reviews say about Marx & Duffy?

Marx & Duffy has a rating of 4.2 from 10 Google reviews. The LFR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Marx & Duffy?

Call Marx & Duffy on (415) 567-4111. The business is at 155 Montgomery St #507, San Francisco, CA 94104. Its website is linked in the key facts on this page. Ask how the firm charges before the first meeting, and keep confidential details for after its conflict check.

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Compare nearby divorce and family lawyers

Marx & Duffy compared with nearby businesses
BusinessRankLFR ScoreGoogle ratingSaturdaySundayDistance away
Marx & Duffy (this business)—604.2 (10)NoNo
Ruben Family Law Resolution Services#36604.6 (9)NoNo0.4 mi
GYEMANT PARIS LAW#37604.5 (8)NoNo1.7 mi
Cardwell Steigerwald Young LLP#39605.0 (6)NoNo0.2 mi

See all 222 ranked divorce and family lawyers in San Francisco