The Trusted Law Firm of Northern Nevada
Small Firm Care,
Big Firm Resultss
Over 100 Years of Combined Service to Northern Nevada

An Award-Winning Law Firm

  • American Institute of Trail Lawyers - Litigator Of The Year
  • Nevada Business Legal Elite 2014-2016
  • Nevada Business Legal Elite Best Up and Coming 2015-2016
  • Nevada Business Legal Elite Top Attorneys in Nevada 2013
  • ADC Veritas
  • American Association of Premier DUI Attorneys
  • NAFLA Top 10 Ranking 2016
  • Avvo 10.0 Rating, DUI & DWI, 2016
  • The National Top 100 Trial Lawyers
  • Martindale-Hubbell Preeminent 2020
  • America's Top 100 Attorneys

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What Sets Our Firm Apart?

Reasons to Hire Viloria, Oliphant, Oster & Aman L.L.P.
  • Our Strategy

    We’re true trial lawyers. We prepare every case as if it’s going to trial. This ensures we’re ready for the unexpected.

  • Our Resources

    When your case is bigger than you, you need a firm with the resources to support and guide you through it.

  • Our Availability

    When you call, we answer. It’s that simple. We understand that the key to results is constant communication.

  • Our Experience

    You need an attorney who hasn’t just learned about the law, but someone who practices it day in and day out.

Award-Winning Trial Attorneys

Committed to Providing You with the Care & Attention You Deserve
  • Thomas E. Viloria
  • R. Shawn Oliphant
  • Raymond E. Oster
  • Nathan J. Aman
  • Kelli Anne Viloria
  • James J. Barnes
  • Stephanie K. Funk
  • Emilee N. Hammond
  • Kathleen Cooke Mangan
  • Darby G. Phelps
  • Thomas E. Viloria Thomas E. Viloria

    Managing Partner

    Thomas E. Viloria is a founding partner at Viloria, Oliphant, Oster & Aman, L.L.P., focusing his practice on criminal defense, injury cases, and wrongful death claims.

    Thomas E. Viloria Photo
  • R. Shawn Oliphant R. Shawn Oliphant


    R. Shawn Oliphant is a founding partner of the firm Viloria, Oliphant, Oster & Aman, L.L.P. Mr. Oliphant handles serious personal injury and wrongful death claims, and is the head of the firm’s Civil Litigation group.

    R. Shawn  Oliphant Photo
  • Raymond E. Oster Raymond E. Oster


    A Certified Family Law Specialist, Raymond E. Oster brings invaluable experience and skill to Viloria, Oliphant, Oster & Aman, L.L.P.

    Raymond E. Oster Photo
  • Nathan J. Aman Nathan J. Aman


    Nathan J. Aman is a partner with Viloria, Oliphant, Oster & Aman, L.L.P. and respected commercial litigation attorney in Reno, NV. He handles cases involving business law, corporate matters, construction law, civil and commercial litigation, and more.

    Nathan J. Aman Photo
  • Kelli Anne Viloria Kelli Anne Viloria


    Kelli Anne Viloria, Esq., ventured into the private practice of law after spending nearly 14 years as a criminal prosecutor for the Washoe County District Attorney’s Office. 

    Kelli Anne  Viloria Photo
  • James J. Barnes James J. Barnes


    James J. Barnes is a Reno family lawyer, and focuses his practice on divorce and family law. Mr. Barnes has successfully represented clients in all areas of family law.

    James J. Barnes Photo
  • Stephanie K. Funk Stephanie K. Funk


    Practicing business law, commercial litigation, and construction / development law, Stephanie K. Funk is a key member of the legal team at Viloria, Oliphant, Oster & Aman, LLP.

    Stephanie K. Funk Photo
  • Emilee N. Hammond Emilee N. Hammond

    Associate Attorney

    As an associate attorney at Viloria, Oliphant, Oster & Aman L.L.P., Emilee N. Hammond focuses her practice in the areas of civil and commercial litigation, business law, construction law, probate, and trust and estate litigation.

    Emilee N. Hammond Photo
  • Kathleen Cooke Mangan Kathleen Cooke Mangan

    Associate Attorney

    Kathleen Cooke Mangan is a fourth-generation Nevada attorney. Born and raised in Reno, Kathleen earned her International ...
    Kathleen  Cooke Mangan Photo
  • Darby G. Phelps Darby G. Phelps

    Associate Attorney

    Darby G. Phelps is an associate attorney at Viloria, Oliphant, Oster & Aman L.L.P. practicing primarily in the areas of civil and commercial litigation, business law, construction law, probate, and trust and estate litigation.

Client Success Stories

Hear From Our Past Clients
  • “Not only did Shawn keep my families needs and wishes at the forefront. He was so empathetic. He really has a gift for making you feel heard.”

    - Dawn B.
  • “You all are truly the best”

    - Former Client
  • “Without you, we wouldn’t be where we are.”

    - Former Client
  • “We truly appreciate everything your office and staff did to help us”

    - Former Client
  • “I reside in Vancouver British Columbia and on Feb 21, 2022, my sister who lives in Reno, Nevada as a retired State of Nevada employee passed away. I was nominated by my family to oversee the estate of ...”

    - John R.