Law Office of Sean M. O'Neill

Welcome to the Law Office of Sean M. O'Neill

At the Law Office of Sean M. O'Neill, we are dedicated to providing comprehensive legal services tailored to meet the unique needs of each client. Our areas of expertise include:

• Estate Planning
• Asset Protection
• Business Consultation & Litigation
• Real Property Transaction & Litigation
• Residential and Commercial Landlord-Tenant Disputes
• Neighbor Disputes
• Family Law, including Prenuptial Agreements and Divorce Proceedings
• Immigration

Our commitment to outstanding customer service ensures that your communications are promptly returned, and we make ourselves available to answer your questions. You will always know the status of your case through electronic access to case files and periodic status updates. From the first time we meet to the last, you can be certain that you will always be treated with courtesy and respect. Everything you tell us will remain confidential and will be heard without judgment. You can also expect zealous advocacy. Our goal is to be your lifelong advisor, assisting you in various legal matters and endeavors.

Contact Us

To schedule a consultation, please reach out to us at:

Phone: (510) 933-8321

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

Main Office:

1879 Lundy Ave., Suite 169
San Jose, CA 95131

Satellite Office:

39899 Balentine Dr., Suite 200
Newark, CA 94560

Our office hours are Monday through Friday, 9:00 am to 5:00 pm. We are closed on weekends.

We look forward to assisting you with your legal needs.