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Atty. James Alan Lonergan

Atty. James Alan Lonergan

James Alan Lonergan is a lawyer practicing real estate, energy, land use & environmental, commercial leasing, real estate acquisitions and dispositions and 4 other areas of law. James received a B.A. degree from University of California, Irvine in 1977, and has been licensed for 46 years.

Los Angeles Los Angeles 46 yrs experience 46 year
Call (628) 243-4845 Book Appointment

Profile Summary

About James Alan Lonergan at a glance

James Alan Lonergan is an Of Counsel based in Los Angeles, California, practicing at Sheppard Mullin. They have 46+ years of legal experience, licensed to practice since 1980. Their practice focuses on business, real estate, commercial re, m&a, and zoning. Admitted to practice in California (1980). Educated at University of Southern California (J.D., 1980) and University of California, Irvine (B.A., 1977). Recognitions include AV Preeminent. Active member of Memberships •Member, Real Property Section and Commercial Leasing Subsection, State Bar of California •Member, Real Property Section, Los Angeles County Bar Association. Serands clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • James Alan Lonergan is a lawyer practicing real estate, energy, land use & environmental, commercial leasing, real estate acquisitions and dispositions and 4 other areas of law
  • James received a B.A. degree from University of California, Irvine in 1977, and has been licensed for 46 years
  • James practices at Sheppard Mullin in Los Angeles, CA

Practice Areas Explained

James Alan Lonergan's Areas of Practice

Each practice area below reflects the types of cases James Alan Lonergan handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

James Alan Lonergan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

James Alan Lonergan is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in California →

Commercial Real Estate

James Alan Lonergan is one of 16,000 commercial re attorneys indexed nationally. Browse commercial re attorneys in California →

Mergers & Acquisitions

James Alan Lonergan is one of 49,731 m&a attorneys indexed nationally. Browse m&a attorneys in California →

Land Use & Zoning

James Alan Lonergan is one of 40,226 zoning attorneys indexed nationally. Browse zoning attorneys in California →

Jurisdictional Context

Why local counsel matters in California

Practicing law in California. Legal matters in California are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Los Angeles are typically filed in the local municipal court or the appropriate California state district court, depending on subject matter and amount in controversy. An attorney licensed in California brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in California courts without local counsel or pro hac vice admission.

Looking for additional California attorneys? Browse all attorneys in Los Angeles or all attorneys in California.

Frequently Asked

Common questions about James Alan Lonergan

Where is James Alan Lonergan's law office located?
James Alan Lonergan's law practice is located in Los Angeles, California. The firm is Sheppard Mullin. You can contact the office directly through this profile page.
What practice areas does James Alan Lonergan handle?
James Alan Lonergan focuses on business, real estate, commercial re, m&a, zoning. Each practice area listed reflects experience handling cases of that type in California.
How long has James Alan Lonergan practiced law?
James Alan Lonergan has 46+ years of legal experience and has been licensed since 1980.
Where did James Alan Lonergan go to law school?
James Alan Lonergan earned their education at (J.D., 1980); (B.A., 1977).
How can I contact James Alan Lonergan for a consultation?
You can contact James Alan Lonergan directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has James Alan Lonergan received?
James Alan Lonergan's notable recognition includes: AV Preeminent.

Education

J.D.
University of Southern California
- 1980
B.A.
University of California, Irvine
- 1977

Awards

AV Preeminent

Bar Admissions

California
Admitted: 1980

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