Atty. Thomas Jay Leanse

Atty. Thomas Jay Leanse

Thomas Jay Leanse is a lawyer practicing appellate litigation, bankruptcy and creditors' rights, litigation and dispute resolution and 5 other areas of law. Thomas received a B.A. degree from University of California, San Diego in 1975, and has been licensed for 48 years.

Los Angeles Los Angeles 48 yrs experience 48 year
Call (213) 603-9903 Book Appointment

Appellate Litigation & More Attorney · Serving Los Angeles, CA · 48+ Years Experience

Profile Summary

About Thomas Jay Leanse at a Glance

Thomas Jay Leanse is an Attorney based in Los Angeles, California, practicing at Katten Muchin Rosenman LLP. They have 48+ years of legal experience, licensed to practice since 1978. Their practice focuses on real estate, bankruptcy, estate litigation, litigation, and appellate. Admitted to practice in California (1978) and Illinois U.S. Court of Appeals, Seventh Circuit U.S. Court of Appeals, Ninth Circuit U.S. District C (1979). Educated at University of San Diego School of Law (J.D., 1978) and University of California, San Diego (B.A., 1975). Recognitions include AV Preeminent. Active member of American Bar Association California Business Properties Association International Council of Shopping Centers Los Angeles County Bar Association. Serves clients in Los Angeles, CA and the surrounding metropolitan area.

Verified attorney profile · Updated October 2026

About Thomas Jay Leanse

  • Thomas Jay Leanse is a lawyer practicing appellate litigation, bankruptcy and creditors' rights, litigation and dispute resolution and 5 other areas of law
  • Thomas received a B.A. degree from University of California, San Diego in 1975, and has been licensed for 48 years
  • Thomas practices at Katten Muchin Rosenman LLP in Los Angeles, CA

Practice Areas Explained

Thomas Jay Leanse's Areas of Legal Practice

Each practice area below reflects the types of cases Thomas Jay Leanse handles, with a practical overview of what that area of law involves and how it may apply to your situation in Los Angeles.

Real Estate Law in Los Angeles

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

Thomas Jay Leanse is one of 313,729 real estate attorneys indexed nationally. Browse real estate attorneys in California →

Bankruptcy & Debt in Los Angeles

A bankruptcy attorney can help you eliminate debt, stop creditor harassment, and protect your home through Chapter 7 or Chapter 13.

Thomas Jay Leanse is one of 104,458 bankruptcy attorneys indexed nationally. Browse bankruptcy attorneys in California →

Estate & Trust Litigation in Los Angeles

Thomas Jay Leanse is one of 19,876 estate litigation attorneys indexed nationally. Browse estate litigation attorneys in California →

Civil Litigation in Los Angeles

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Thomas Jay Leanse is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Appellate Practice in Los Angeles

Appellate attorneys for civil and criminal appeals at state and federal court.

Thomas Jay Leanse is one of 85,572 appellate attorneys indexed nationally. Browse appellate attorneys in California →

Jurisdictional Context

Why Local Counsel Matters in Los Angeles

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 venue, 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.

Los Angeles Courts and Legal Process

Choosing a Los Angeles-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.

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

Frequently Asked

Common Questions About Thomas Jay Leanse

Where is Thomas Jay Leanse's law office located?
Thomas Jay Leanse's law practice is located in Los Angeles, California. The firm is Katten Muchin Rosenman LLP. You can contact the office directly through this profile page.
What practice areas does Thomas Jay Leanse handle?
Thomas Jay Leanse focuses on real estate, bankruptcy, estate litigation, litigation, appellate. Each practice area listed reflects experience handling cases of that type in California.
How long has Thomas Jay Leanse practiced law?
Thomas Jay Leanse has 48+ years of legal experience and has been licensed since 1978.
Where did Thomas Jay Leanse go to law school?
Thomas Jay Leanse earned their education at (J.D., 1978); (B.A., 1975).
How can I contact Thomas Jay Leanse for a consultation?
You can contact Thomas Jay Leanse 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 Thomas Jay Leanse received?
Thomas Jay Leanse's notable recognition includes: AV Preeminent.

Professional Profile

Why Clients in Los Angeles Choose Thomas Jay Leanse

Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Thomas Jay Leanse's practice in the field of real estate, bankruptcy, estate litigation, litigation, and appellate.

Decade-Tested Legal Experience

Thomas Jay Leanse brings 48+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.

Multi-State Bar Admission

Licensed in California and Illinois U.S. Court of Appeals, Seventh Circuit U.S. Court of Appeals, Ninth Circuit U.S. District C, Thomas Jay Leanse can represent clients in cases that span state lines or require counsel in multiple jurisdictions.

Broad Practice Area Coverage

Covering real estate, bankruptcy, and estate litigation, Thomas Jay Leanse can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.

Local Presence in Los Angeles

A Los Angeles-based practice means Thomas Jay Leanse attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.

Case Types

Common Legal Issues Thomas Jay Leanse Handles in Los Angeles

Below is a representative sample of the types of matters Thomas Jay Leanse has experience with under California law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.

Residential property transactions
Real Estate
Commercial lease disputes
Real Estate
Title and deed issues
Real Estate
Landlord-tenant conflicts
Real Estate
Chapter 7 liquidation
Bankruptcy
Chapter 13 repayment plans
Bankruptcy
Debt negotiation
Bankruptcy
Creditor harassment defense
Bankruptcy

This list is illustrative, not exhaustive. Contact Thomas Jay Leanse directly to discuss the specifics of your situation.

Search Reference

How People Find Thomas Jay Leanse Online

Prospective clients searching for legal help in Los Angeles commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Thomas Jay Leanse.

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If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Thomas Jay Leanse directly.

Education & Law School Background

J.D.
University of San Diego School of Law
- 1978
B.A.
University of California, San Diego
- 1975

Awards & Professional Honors

AV Preeminent

Bar Admissions & Licensed Jurisdictions

California
Admitted: 1978
Illinois U.S. Court of Appeals, Seventh Circuit U.S. Court of Appeals, Ninth Circuit U.S. District C
Admitted: 1979

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