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24 firms listed · 11 in Costa Mesa · 2 open 24/7 · 2 open weekends · 21 rated 4.5+
Data verified October 16, 2026
The 24 firms listed for Costa Mesa, CA handle probate and estate administration for families. What each states about the services it offers executors comes from its own website; ratings and quotes come from public reviews.
Of the 24 firms we list here, 11 are in Costa Mesa itself and 13 come from towns including Newport Beach (3, 4 mi), Irvine (3, 8 mi) and Santa Ana (1, 5 mi). 23 of the firms on this page have a rating, from 4.1 to 5.0 across 1,975 reviews; 11 have 50 or more reviews and 21 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (98%), responsiveness (87%) and quality (72%). 2 are open around the clock and 2 are open on weekends. The practice areas the firms on this page list most often on their websites are probate (3), bicycle accidents (2), business formation (2), commercial leasing (2) and estate planning (2). 3 show a license on their websites; 1 lists staff certifications (CPA) and 4 have a BBB rating of A or A+. Domain records put 16 websites of the firms on this page at ten or more years old; the oldest dates from 1999. 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.
All 24 firms on this page have a website on file, and most of those describe the estate work they take on. It is the quickest way to tell a general practice from one that administers estates every week. What you read there is the firm's own description.
