Theodore Patrick Lopez, Business Attorney in Irvine, California
Over 29 years of legal practice · focused on Business, IP, and M&A
AssociateatKlein O Neill And Singh Llp
Irvine, CA
Practicing business in Irvine since 1997.
- 29+
- Years practicing
- 1
- Bar admission
Practices in
Are you Theodore Patrick Lopez?
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Quick answer
Theodore Patrick Lopez is an associate based in Irvine, CA. The practice focuses on Business, IP, and M&A. Theodore has over 29 years of legal experience. Currently practicing at Klein O Neill And Singh Llp.
- Based in
- Irvine, CA
- Experience
- over 29 years
- Known for
- Business · IP · M&A
- Handles Business, IP, and M&A matters from Irvine, CA.
- Over 29 years of practice as a licensed attorney.
About Theodore Patrick Lopez: Theodore Patrick Lopez is an associate based in Irvine, CA. The practice focuses on Business, IP, and M&A. Theodore has over 29 years of legal experience. Currently practicing at Klein O Neill And Singh Llp.
Areas of practice
Legal matters Theodore takes on
Theodore concentrates on business, ip, m&a, and real estate. Each area below outlines the kind of case Theodore handles, typical outcomes to expect, and how the intake process starts.
Business
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IP
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M&A
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Real Estate
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Business cases in Irvine, California
Theodore takes business matters in Irvine, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Theodore agrees to represent you.
IP cases in Irvine, California
Theodore takes ip matters in Irvine, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Theodore agrees to represent you.
M&A cases in Irvine, California
Theodore takes m&a matters in Irvine, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Theodore agrees to represent you.
Real Estate cases in Irvine, California
Theodore takes real estate matters in Irvine, California. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Theodore agrees to represent you.
Biography
Meet Theodore Patrick Lopez — business lawyer in Irvine
Theodore Patrick Lopez is an associate based in Irvine, CA. The practice focuses on Business, IP, and M&A. Theodore has over 29 years of legal experience. Currently practicing at Klein O Neill And Singh Llp.
Theodore Patrick Lopez is a lawyer practicing intellectual property, intellectual property law, business and 1 other area of law. Theodore received a B.S.M.E. degree from California State Polytechnic University in 1998, and has been licensed for 29 years. Theodore practices at Klein, O'Neill & Singh, LLP in Irvine, CA.
Working with Theodore on a business matter
Theodore Patrick Lopez is a lawyer practicing intellectual property, intellectual property law, business and 1 other area of law. Theodore received a B.S.M.E. degree from California State Polytechnic University in 1998, and has been licensed for 29 years. Theodore practices at Klein, O'Neill & Singh, LLP in Irvine, CA.
Who Theodore represents
Theodore reviews new inquiries case-by-case for business, ip, and m&a matters in Irvine and the surrounding California area.
Credentials
Education, bar admissions, and languages
University of California School of Law, Los Angeles
J.D. · 1997
California State Polytechnic University
B.S.M.E. · 1998
Jurisdictions
Theodore's state bar admissions
California registere
1997 · ACTIVE
Theodore studied at J.D. in University of California School of Law, Los Angeles and B.S.M.E. in California State Polytechnic University.
Law school and academic background
Theodore completed J.D. in University of California School of Law, Los Angeles and B.S.M.E. in California State Polytechnic University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Theodore runs in California is where that training gets applied to real client questions.
Affiliations
Theodore's professional memberships and bar associations
American Intellectual Property Association Orange County Bar Association
membership
Locations
Theodore Patrick Lopez's office in Irvine
Theodore's primary office is at 18200 Von Karman Ave., Ste. 725, Irvine, CA, 92612. In-person meetings are by appointment; a phone intake usually comes first.
Klein O Neill And Singh Llp
18200 Von Karman Ave., Ste. 725
Irvine, CA 92612
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Client reviews of Theodore Patrick Lopez
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Schedule your consultationHiring guide
How to hire Theodore Patrick Lopez — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with Theodore usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Theodore charges for the initial consult. That fee is credited toward representation if you retain Theodore's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; Theodore will tell you what matters and what doesn't.
Questions to ask a business attorney in Irvine, California
A short list to run through before you commit: How many business matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for Theodore
Theodore discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in business practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every business matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. Theodore confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Theodore's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many business practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Theodore Patrick Lopez
How much does it cost to hire Theodore for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Theodore walks through the likely range during the consult so there are no surprises.
Does Theodore offer a free consultation?
Theodore charges for the initial consult; that fee is credited toward representation if you retain Theodore's office. Some business attorneys offer free consults — check Theodore's current terms during booking.
How long do business cases in California typically take?
Simple business matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Theodore gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Theodore take my case if I'm outside Irvine?
Theodore is licensed in California. Matters governed by California law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Theodore will tell you if the case is a fit or refer you to someone closer to your court.
What should I bring to my first meeting with Theodore?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Theodore will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Theodore accepting new business clients right now?
Theodore's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.
Areas served
Business attorneys serving Irvine, Los Angeles and San Francisco in California
Theodore handles business matters throughout California. Each city below is a direct link into the search page for verified business attorneys in that community.
- Irvine6,831 attorneys
- Los Angeles39,975 attorneys
- San Francisco26,380 attorneys
- San Diego16,903 attorneys
- Sacramento10,561 attorneys
- Oakland5,709 attorneys
- San Jose5,009 attorneys
- Palo Alto4,084 attorneys
- Beverly Hills3,348 attorneys
- Newport Beach3,106 attorneys
- Pasadena2,894 attorneys
- Santa Monica2,756 attorneys
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