Zweiback, Fiset, & Zalduendo LLP

What Zweiback, Fiset, & Zalduendo LLP does

Zweiback, Fiset, & Zalduendo LLP, doing business as RFZ Law LLP, is a boutique California law firm headquartered at 315 W. 9th Street, Suite 1200, Los Angeles, structured as a limited liability partnership. The firm focuses on white-collar criminal defense, government investigations, complex litigation, and corporate law, and operates across 14 distinct practice areas including healthcare defense, False Claims Act litigation, customs fraud, whistleblower claims (both plaintiff-side and defense), administrative and regulatory actions, environmental and natural resources litigation, Title IX matters, state court criminal defense, internal corporate investigations, and business litigation and advisory. Client work spans federal and state matters, with representation of Fortune 500 companies, public officials and government entities, healthcare providers and pharmaceutical companies, and high-net-worth individuals.

The firm is led by Managing Partner Rachel L. Fiset, with Partners Ronnie Roy, Jeanine Zalduendo, and Ian Wiener, and Counsel and Associates including Shilpa Coorg, Benjamin Heller, William Odom, Dawn Utsumi, Aubrey Jones, Keith Lawton, Nathalie Lopez, Jeremy Masys, and Garrison Murphy. The practice is built on individual attorney credentials and trial experience rather than proprietary technology, with the firm recognized through Chambers USA (2024 and 2026), Top White Collar designations (2024 and 2025), Best Lawyers 2025, Daily Journal Top Women Leaders 2024, and the Los Angeles Business Journal Leaders of Influence 2025.

The business model is a traditional professional services fee structure, with hourly billing for litigation and defense work and contingency-based arrangements available for qualifying whistleblower and recovery matters. Client acquisition is driven by legal directory rankings, earned media coverage, professional referrals from other firms and corporate general counsel, and a direct-intake channel via website and phone (213-266-5170), including free initial case evaluations. No external investment, parent company, or funding rounds are disclosed, and the firm operates as a partner-owned limited liability partnership serving California clients with national reach for federal matters.

Name

Zweiback, Fiset, & Zalduendo LLP

Legal name

RFZ Law LLP

Website

https://zfclaw.com

Company type

Private

Operating status

Operating

Short description

Zweiback, Fiset, & Zalduendo LLP (d/b/a RFZ Law) is a Los Angeles boutique law firm specializing in white-collar criminal defense, government investigations, complex litigation, and corporate law, serving Fortune 500 companies, public officials, healthcare providers, and high-net-worth individuals across 14 practice areas.

Ownership category

akta.pro rank

Product category

White Collar Criminal Defense Legal Services

NAICS

Offices of Lawyers (541110), Offices of Lawyers (54111)

SIC

Services-Legal Services (8111)

akta.pro primary industry

White-Collar Defense & Investigations (BPAHAAAJ)

akta.pro secondary industries

Mergers & Acquisitions (M&A) & Securities Law (BPAHAAAI), Financial Crime, AML/CFT & Sanctions Compliance (BPAHAFAE)

Keywords

• White collar defense
• Government investigations
• Complex litigation
• Healthcare defense
• Whistleblower claims

Headquarters

HQ city

Los Angeles

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Legal Services - Hourly/Fee-Based: Traditional law firm billing for legal services including criminal defense, litigation, corporate law, and internal investigations. Offers contingency-based arrangements where no attorney fees are owed unless compensation is recovered.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Zweiback, Fiset, & Zalduendo LLP is a boutique California law firm providing trial-based legal representation across white collar criminal defense, government investigations, complex litigation, internal investigations, healthcare defense, whistleblower claims, false claims defense, customs fraud, environmental litigation, and corporate law matters. The firm serves Fortune 500 companies, corporations, public officials, healthcare providers, and individuals in federal and state proceedings. Representation is offered through 14 distinct practice areas delivered by a team of partners, counsel, and associates based in Los Angeles.

Product overview

RFZ Law LLP is a boutique California law firm offering legal services through 14 distinct practice areas. The firm specializes in white collar criminal defense and government investigations, providing representation in federal and state matters involving fraud, regulatory enforcement, and complex litigation. The practice portfolio includes specialized areas such as healthcare defense, whistleblower claims, customs fraud, environmental litigation, and corporate law, serving clients ranging from Fortune 500 companies to individuals. The firm is headquartered in Los Angeles with attorneys including Managing Partner Rachel L. Fiset, Partner Ronnie Roy, and Counsel Shilpa Coorg among others.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Successfully represented whistleblower in major SEC cryptocurrency case
• +1 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• WilmerHale: National full-service firm widely regarded as a leader in white-collar defense, government investigations, and SEC enforcement. Comparable on practice focus but operates across a broader portfolio including corporate, IP, and regulatory.
• BakerHostetler: National firm with a substantial white-collar, internal investigations, and healthcare-related enforcement practice, including significant False Claims Act work. Comparable on healthcare defense and FCA matters.
• Latham & Watkins LLP: Global full-service law firm with a top-tier white-collar defense and investigations practice advising corporates and individuals on DOJ, SEC, and cross-border enforcement. Comparable practice, broader geographic and practice coverage.
• Sidley Austin LLP: Global full-service firm with an established white-collar, securities enforcement, and internal investigations practice serving Fortune 500 clients. Comparable on white-collar defense, broader on corporate scale.
• Covington & Burling LLP: Major national firm with a leading white-collar, investigations, and enforcement practice alongside broader regulatory and litigation work. Comparable on government investigations, healthcare, and regulatory enforcement matters.

Direct peers

• Boies Schiller Flexner LLP: High-profile litigation boutique with a strong white-collar defense, government investigations, and trial practice serving Fortune 500 companies and individuals. Comparable to RFZ in boutique scale, trial focus, and high-stakes criminal defense orientation.
• Kobre & Kim: Elite litigation and investigations boutique focused on white-collar defense, FCPA, sanctions, and complex cross-border disputes for sophisticated clients. Directly comparable to RFZ in niche positioning, partner-led model, and premium-rate defense work.
• Quinn Emanuel Urquhart & Sullivan: Largest litigation-only global firm with deep white-collar and government investigations capabilities, often representing individuals and corporations in parallel civil/criminal matters. Comparable to RFZ on litigation focus, though at significantly greater scale.
• Kasowitz Benson Torres LLP: Litigation boutique with strong white-collar, government investigations, and complex commercial dispute practices serving large corporates and executives. Directly comparable in trial-driven, partner-led defense work.

Regional players

• Freeborn & Peters LLP: Mid-sized law firm with a white-collar and government investigations practice serving corporate and individual clients across the Midwest. Comparably positioned in niche white-collar defense but in a different geographic market than RFZ's LA base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Zweiback, Fiset, & Zalduendo LLP