Virginia (202) 466-6937 | Arizona (602) 388-8899

Peter A. Arhangelsky, Esq.

P: (602) 334-4416
Chandler, Arizona

Peter A. Arhangelsky joined Emord & Associates in 2007. He is a principal in the firm. He assists a wide range of businesses (often FDA-regulated entities) in navigating regulatory- and litigation-based concerns at all levels.

His practices include food and drug law, deceptive advertising, health law, contract and licensing, civil litigation, appellate advocacy, and constitutional law. Among his expertise in commercial and business litigation, he litigates unfair competition matters, including claims related to food and drug advertising. He handles complex civil matters and appeals within the administrative agencies and before the federal courts, including constitutional and administrative matters before the Food and Drug Administration (FDA), the Federal Trade Commission (FTC), the Department of Justice (DOJ), and the Environmental Protection Agency (EPA).

Mr. Arhangelsky counsels clients on matters of regulatory compliance involving dietary supplements, foods, drugs, medical devices, cosmetics, and other product categories regulated by Federal Agencies and their state analogues. He has particular experience counseling companies that sell, market, or distribute dietary supplements and food products. From the concept phase through global marketing, Mr. Arhangelsky has considerable experience and ability to help clients navigate nuanced laws and regulations that govern those highly regulated businesses. He has extensive experience in labeling and advertising reviews, product strategy, and regulatory affairs consultations. He has authored articles on medical device regulation, and been interviewed in legal circulars as an expert on FDA law, advertising law, administrative law, and constitutional issues. He has experience in medical device regulation, which includes assistance in areas such as pre-market clearance (e.g., 510(k)), QS inspections, device classification, and import/export issues. Mr. Arhangelsky has been retained as an expert consultant on FDA regulations and policies that affect dietary supplement companies, including, for example, regulations pertaining to Good Manufacturing Practices (cGMP), New Dietary Ingredients (NDIs), advertising regulations (including those enforced by the FTC), and product safety concerns.

Mr. Arhangelsky is also an experienced litigator who represents clients in complex matters concerning regulated products, corporate disputes, Lanham Act claims, state and federal business torts, constitutional law, unfair competition, and advertising (including federal, state, administrative, and private actions, e.g., National Advertising Division of the Better Business Bureaus). His experience includes substantial work in California concerning consumer product lawsuits, Unfair Competition claims, and similar torts advanced against regulated entities. Mr. Arhangelsky is licensed to practice in California state and federal courts where he has successfully managed many legal threats against businesses selling or distributing product into California. Those matters include lawsuits filed under Proposition 65, the CLRA, the UCL, and various other statutes commonly invoked by California Plaintiffs. He has also represented health care providers in matters before the California licensing bodies, and in response to threatened litigation under the California laws and regulations. Mr. Arhangelsky represents Network Marketing Companies in regulatory concerns and litigation. He has experience with intellectual property disputes commonly affecting most businesses, including litigation over trademarks, copyrights, and trade secrets. He has litigated and resolved issues pertaining to infringement and misappropriation, including torts related to intentional interference with business. That work also includes evaluation of contract-related disputes, including manufacturing and retail agreements, or disputes over restrictive covenants like non-compete or non-disclosure agreements.

Mr. Arhangelsky has extensive experience litigating and resolving advertising-related disputes. A primary area of his practice includes advertising law, which encompasses overlapping First Amendment issues. He has been lead counsel in complex advertising lawsuits involving private businesses, the FTC, and individual plaintiffs. Those lawsuits commonly proceed under state laws like the California False Advertising Law (FAL), the Unfair Competition Law (UCL), or the California Consumer Legal Remedies Act (CLRA). At the federal level, advertising litigation often proceeds under the Lanham Act. Mr. Arhangelsky has a record of success managing those types of claims. He has represented parties in litigation under the Federal Racketeer Influenced and Corrupt Organizations Act (RICO Act), which relates to white collar activity. He has significant experience managing complex e-discovery issues, including cases that have involved volumes electronic data and records.

His cases have included representation of corporations before the Federal Trade Commission in Part III administrative trials. His litigation experience also includes FDA and DEA enforcement actions and administrative hearings. He has appellate experience before state and federal courts, including federal circuit courts of appeal. He serves as a litigation consultant in complex matters involving the jurisdiction of the federal agencies. He served as counsel in the following representative cases: Alliance for Natural Health U.S. v. Sebelius, 786 F.Supp. 2d 1 (D.D.C. 2011) (holding that FDA’s rewording of health claims for dietary supplement products violated First Amendment); Alliance for Natural Health U.S. v. Sebelius, 714 F.Supp. 2d 48 (D.D.C. 2010) (holding that First Amendment prohibited FDA from censoring health claims without considering appropriate disclaimers); In re Novelty Distributors, DEA Docket No. 08-33 (May 21, 2008) (administrative DEA trial proceeding regarding the distribution of Scheduled Listed Chemicals (SLCs)); Albion Intern., Inc. v. American Intern. Chemical, Inc., No. 2:07-cv-0994, 2012 WL 3776866 (D.Utah 2012) (holding that competitor’s Lanham Act false advertising claim was barred by the doctrine of laches); In re ECM BioFilms, Inc. d/b/a Enviroplastics International, FTC Dkt. 9358 (2013-2017) (administrative FTC trial proceeding regarding advertising claims related to biodegradable plastics); Nilon v. Natural-Immunogenics Cop., No. 3:12-cv-00930-LAB(BGS) (S.D. Cal. 2012-2015) (successful defense of California UCL and CLRA lawsuit that challenged dietary supplement advertising); Federal Trade Commission v. Lunada Biomedical, Inc., et al., No. CV-15-3380-MWF(PLA) (C.D. Cal. 2015) (federal FTC proceeding challenging advertising related to dietary supplement); Larson et al. v. HGGC LLC et. al., No. 2:18-cv-03695 (C.D. Cal. 2018); Wallach et al. v. Johnson et al., No. 2:19-cv-04564 (D.Ariz. 2019) (federal lawsuit seeking damages for defamation torts); Natural-Immunogenics Corp. v. Ferrell, et al., 766 Fed.Appx. 435 (9th Cir. 2019) (holding that law firm was not entitled to ex parte hearing before court compelled emails under the crime-fraud exception).

Peter was born and raised in White Plains, NY. He graduated cum laude from Suffolk University Law School in Boston, Massachusetts. He was a publishing member and later Note Editor for the Suffolk University Law Review. He was awarded one of Suffolk University’s Jurisprudence awards for his academic study in corporate law, and studied international law and international intellectual property at the University of Lünd, Sweden.

Mr. Arhangelsky was selected to Southwest Region Rising Stars list in 2017. Each year, no more than 2.5 percent of the lawyers in the state are selected by the research team at Super Lawyers to receive this honor.


Suffolk University Law School, J.D.

  • Cum Laude
  • Suffolk University Law Review, Note Editor

University of Delaware, B.A., Political Science,


  • Arizona State Courts & Supreme Court
  • California State Courts & Supreme Court
  • United States Court of Appeals for the Ninth Circuit
  • United States Court of Appeals for the Sixth Circuit
  • United States Court of Appeals for the Tenth Circuit
  • United States Court of Appeals for the Second Circuit
  • United States District Court for the District of Arizona
  • United States District Court for the Central District of California
  • United States District Court for the Southern District of California
  • United States District Court for the Northern District of California


Recent Posts by Peter A. Arhangelsky, Esq.

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