Best Estate Planning Attorneys in Diamond Bar, CA
15 firms listed · 5 in Diamond Bar · 1 open weekends · 13 rated 4.5+ · 1 shows a license
Data verified October 16, 2026
Haven & King Law Firm
JV LAW Offices
Law Offices of Sue C. Swisher
Gloria D Cordova Law Offices
Law Office of Christopher P. Walker
The 15 firms listed for Diamond Bar, CA write wills, trusts and powers of attorney for clients. What each says about its planning packages and meeting options comes from its own website; ratings and quotes come from public reviews.

Area overview: Diamond Bar, CA
5 of the 15 firms we list are based in Diamond Bar; the other 10 serve Diamond Bar from towns including Upland (12 mi), West Covina (7 mi) and Covina (7 mi). 14 of the firms on this page have a rating, from 4.4 to 5.0 across 795 reviews; 10 have 50 or more reviews and 13 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (100%), responsiveness (93%) and quality (79%). The topics that come up most in reviews of the firms on this page are "trust", "patient" and "expertise". 1 is open on Sundays. 1 shows a license on its website and 3 have a BBB rating of A or A+. 11 have ten or more years of experience, the longest 27 years. 8 offer a free initial consultation. 2 have Spanish-speaking staff. We have a website on file for all 15 of the firms on this page; 12 publish a contact page; 8 list a public email and 2 take bookings online. We count these figures across the firms on this page; distances are straight-line, and hours and prices change, so confirm the details with the firm before you book a consultation.
Can I book a will appointment online with firms listed for Diamond Bar?
Appointment requests go through the website at 2 of the 15 firms. A firm without that option works by phone or email. Online booking usually reserves a slot rather than confirming one, so expect a call back to check what the meeting is about.




