Hart Immigration
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24 firms listed · 6 in Fullerton · 4 open 24/7 · 8 open weekends · 19 rated 4.5+
Data verified October 18, 2026
These 24 firms listed for Fullerton, CA handle immigration matters for people and employers. What each states about case types, accreditation and languages spoken comes from its own website; ratings and quotes come from public reviews.

6 of the 24 firms we list are based in Fullerton; the other 18 serve Fullerton from towns including Orange (8 mi), Santa Ana (11 mi) and Anaheim (5 mi). The firms on this page are rated from 4.2 to 5.0 across 4,485 reviews; 18 have 50 or more reviews and 19 are rated 4.5 or higher. When clients rate these firms on specific qualities, they most often praise professionalism (97%), responsiveness (84%) and quality (77%). The topics that come up most in reviews of the firms on this page are "patient", "results" and "knowledge". 4 are open around the clock; 8 are open on Saturdays and 4 on Sundays. The practice areas the firms on this page list most often on their websites are appeals (2), asylum (2), auto accidents (2), civil litigation (2) and criminal law (2). 1 shows a license on its website and 5 have a BBB rating of A or A+. 18 have ten or more years of experience, the longest 23 years. 4 offer urgent consultations and 8 offer a free initial consultation. 4 have Spanish-speaking staff. 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 list the case types they take and the languages spoken in the office. That is the fastest way to separate a firm doing family petitions from one doing employment sponsorship. It is the firm's own account of itself.