Mangum, Wall, Stoops & Wardens, PLLC
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Associates and Paralegals



Jeffrey D. Dollins, Associate

Jeffrey D. DollinsJeffrey D. Dollins represents various school districts, municipal entities and Independent Political Subdivisions throughout the State of Arizona. He has extensive experience in education, municipal and public entity law, and has represented cities, counties, fire districts and the State of Arizona in administrative proceedings and at all levels of the Arizona court system, as well as the federal courts.

Mr. Dollins assists in the representation of the firm's school district clients, and has represented both large and small school districts in administrative proceedings and litigation matters. He also has experience in the areas of employment law, constitutional law and health care law.


  • Willamette University College of Law, Juris Doctor, 1995
  • University of Massachusetts, Bachelor of Arts, 1991


  • State Bar of Arizona


  • Coconino County Bar Association
  • Arizona Fire Districts Association
  • AG Military and Veterans Advisory Council
  • Arizona School Boards Association/Arizona Counsel of School Attorneys
  • Arizona City Attorneys Association

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James D. Griffith, Associate

James D. GriffithJames D. Griffith provides legal services to individuals, businesses, school districts, municipalities, and hospitals. His practice focuses on effective solutions tailored to each client’s legal needs in practice areas that include business law, education law, municipal law, Indian and tribal law, commercial and financial litigation, and contract legal services for other attorneys.


Business Law, Education Law, and Municipal Law

Mr. Griffith’s business, education, and municipal practice includes:

• Contracts and negotiation
• Business and property issues
• Intergovernmental agreements
• Employment and discrimination law
• Student rights and civil rights
• School districts and schools on tribal land

Indian and Tribal Law

Mr. Griffith’s Indian and tribal law practice includes:

• Employment, contract, and negligence matters under tribal law
• Economic development on tribal lands
• Grant schools operating on tribal land
• Business operations on tribal lands
• American Indian Probate Reform Act

Other Practice Areas

• General civil litigation
• Business formation and planning
• Commercial and financial litigation
• Financial exploitation of vulnerable adults
• Wills, trusts, estate planning, and probate


J.D., Phoenix School of Law
B.A., Western Illinois University


State Bar of Arizona
U.S. District Court, District of Arizona
Hopi Tribal Courts
Navajo Tribal Courts


Coconino County Bar Association
American Bar Association

Publications and Presentations

Unauthorized Practices of Law and Tribal Law, presented as part of Seminar on Unauthorized Practices of Law at State Bar of Arizona Convention, July 15, 2016.

The Model Tribal Secured Transactions Act: Self-Determination and Tribal Economic Development, ARIZ. ATT’Y, July/Aug. 2014, at 34-38.

Significant research and editorial contributor to: RANDY EVANS AND JAMES DUNSTAN, TRIBAL BROADBAND GUIDE: TELECOMMUNICATIONS REGULATION AND TAXATION IN INDIAN COUNTRY (Native American Financial Officers Association 2013).

Claims “Arising Out of Contract” under Arizona’s Attorneys’ Fees Statute: Fact Patterns in the Case Law, 2 PHOENIX L. REV. 311 (2009).


Additional Background

Mr. Griffith was born in Illinois, but has lived in Arizona for more than thirty years. His interests include reading, history, and native culture and art. In law school, he served as editor-in-chief of law review.

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Thomas E. Dietrich Associate

Tom Thomas E. Dietrich is an Associate Attorney at Mangum, Wall, Stoops & Warden, PLLC.


Intellectual Property Counseling and Litigation
Tom has over six years of experience in intellectual property counseling and litigation for artists, publishers, inventors, and businesses of all sizes. He can assist with trademark and copyright registration and management, rights licensing, trade secrets protection, and anti-piracy and Digital Millennium Copyright Act compliance. Tom knows copyright infringement litigation, having worked on cases involving both Spawn and The Walking Dead comic books. From a small business perspective, Tom has experience developing comprehensive trade secrets protection policies and day-to-day management of IP issues.

Tom has deep knowledge of patent litigation, from helping small companies protect manufacturing investments to defending Fortune 500 companies. He has litigated patent cases involving healthcare software, email distribution and ERP systems, utility boxes, and bottle labelers, and has written two successful petitions for post-grant patent review.

Civil Litigation
Tom handles civil and business litigation cases for the firm, having worked on cases involving disputes between LLC members, trade secrets theft, cybersquatting, and government contracts. Tom has also managed internal investigations of businesses under civil and criminal investigation by the Securities and Exchange Commission and Department of Justice.

Criminal Prosecution and Appeals
Tom handled over 50 criminal appeals as an Assistant Attorney General. He appeared in court for more than 20 felony preliminary hearings as a clerk with the Alameda County District Attorney’s Office.

Find Tom’s full resume here:

Other Areas of Practice: Appeals, Municipal and Government Law, Health Care Law

Before moving to Flagstaff to join Mangum Wall, Tom handled litigation, IP, and white collar defense matters in the Southern California offices of two national firms, Baker Hostetler LLP and Crowell & Moring LLP. Tom also served as an Assistant Attorney General for the State of Wisconsin.


  • Undergraduate
    • University of Arizona, B.A., cum laude, 2003
  • Graduate
    • University of California, Hastings College of the Law, J.D., 2007


  • State Bar of Arizona
  • State Bar of California
  • State Bar of Oregon
  • United States District Court, Central, Northern, Eastern, and Southern Districts of California
  • United States District Court, Eastern District of Texas
  • Federal Circuit Court of Appeals
  • Seventh Circuit Court of Appeals

Professional Memberships

  • Coconino County Bar Association
  • Orange County Bar Association
  • Intellectual Property Owners Association
  • California State Bar, IP Section

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Sheri A. Biro

Jeffrey D. DollinsSheri A. Biro is a Legal Assistant at Mangum, Wall, Stoops & Warden, P.L.L.C.

Areas of Specialty

Probate / Estate Planning

Ms. Biro's primary areas of practice are probate and estate planning, which includes but is not limited to the creation of Wills, Trusts, Codicils, amendments and restatements, Financial Powers of Attorney, and Health Care Powers of Attorney. In addition, Ms. Biro practices all aspects of trust funding, including but not limited to detailed real estate tracing and transfers, and the retitling of personal property assets.

Guardianships / Conservatorships

Ms. Biro also creates Guardianships and Conservatorships for both minors and adults, in addition to the preparation of annual reports and annual accountings.

Business Law

Ms. Biro handles certain areas of business law, including the creation of profit and non-profit corporations and limited liability companies, and all aspects involved in the completion and upkeep of these entities.

Labor and Employment Law

Ms. Biro handles certain areas within labor and employment law, including the preparation of responses to claims of discrimination filed with the Equal Employment Opportunity Commission, and the research, investigation and memorandum preparation in all areas of the Fair Labor Standards Act.

Tribal Law Litigation

Ms. Biro is involved in collection and repossession litigation through various tribal courts in Arizona.


Cathryn S. Anderson

Cathryn S. AndersonCathryn S. Anderson is a Certified Legal Assistant at Mangum, Wall, Stoops & Warden, P.L.L.C.

Areas of Specialty

Civil Litigation

Ms. Anderson has experience in all aspects of civil litigation, discovery, trial preparation and trial, including complex and large case management in matters involving contract disputes, real estate, construction, bad debt, education, subrogation, employment/labor, property damage, civil rights and complex commercial litigation. Ms. Anderson also has extensive litigation experience in the areas of substantive legal research, settlement brochures and memoranda and drafting of motions. Ms. Anderson also conducts factual investigative research, manages all phases of discovery, including written discovery and document productions.

Personal Injury and Insurance Defense

Ms. Anderson has performed extensive trial work as a Plaintiff's Paralegal, as well as a defense Paralegal in multiple high-profile civil cases. She is competent in municipal cases, product liability, premises liability, wrongful death, bad faith, nursing home malpractice, roadway design, slip/trip and falls, dog bite, automobile accident, motorcycle accident, bicycle accident, pedestrian accident, dram shop and liquor liability, 18-wheel tractor/trailer, and minor child settlements.

Tribal Law Litigation

Ms. Anderson has also performed Paralegal services in civil litigation and replevin cases on the Navajo, Hopi and White Mountain Apache Reservations.

Administrative Law

Ms. Anderson has been involved with several administrative hearings relating to employment issues of tenured faculty. Ms. Anderson taught the civil litigation course at Coconino Community College in Paralegal Studies.


John Feeney

John FeeneyJohn Feeney is a Research Analyst/ Librarian at Mangum, Wall, Stoops & Warden, P.L.L.C.


John attended A.B. Middlebury College, Magna Cum Laude; M.T.S., and Harvard University. His legal education includes B.A. (Juris.), M.A., LL.M., Cambridge University (Corpus Christi College).


John is a member of the Phi Beta Kappa, the Nicholas Bacon Law Society, and the Ninth Judicial Circuit Historical Society.

General Information

John Feeney has been a Research Analyst and Librarian for Mangum, Wall, Stoops & Warden since 1976 with periodic sabbaticals for post-graduate degree work. He continues to work part-time performing legal research, library and archival work. Prior to joining Mangum, Wall, Stoops & Warden, P.L.L.C., John served as an Assistant Manuscript Librarian at Harvard Law School.

Mangum, Wall, Stoops & Warden, P.L.L.C. is located in Flagstaff, Arizona and serves clients in and around Flagstaff and Coconino County.

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