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McKellar, Tiedeken & Scoggin, LLC
702 Randall Avenue
Cheyenne, Wyoming 82001Locate in Google Maps
Telephone: 307-637-5575
Fax: 307-637-5515
E-Mail: firm@mtslegal.net
www.mtslegal.net
Practice Areas
About Us
Client Information
Personnel
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Mailing Address: P.O. Box 748, Cheyenne, WY 82003-0748
Established: 1990

Practice Areas
  • Insurance Defense
  • Commercial General Liability
  • Insurance Bad Faith
  • General Liability
  • Product Liability
  • Trucking Industry Defense
  • Automobile Accidents
  • Professional Malpractice
  • Personal Injury
  • Casualty
  • Surety
  • Environmental Law
  • Environmental Coverage
  • Workers' Compensation
  • Insurance Coverage
  • Oil and Gas
  • Mediation
  • Alternative Dispute Resolution
  • Medical Staff Privileges and Jurisdictional Issues
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About Us
McKellar, Tiedeken & Scoggin, LLC is a full service, trial and litigation firm. Our lawyers offer a combined 100 years of legal experience in State and Federal Courtrooms throughout Wyoming and Colorado. We focus on litigation in the defense of claims arising out of personal injury, catastrophic injury, wrongful death, trucking and transportation accidents, professional malpractice, product liability and, labor and employment law. We defend clients from claims involving fires, explosions and other injuries arising out of oil and gas, drilling, mining and industrial accidents.

We are prepared to try even the most complex cases to conclusion. However, we also assist our clients in resolving or mediating matters that should not be litigated and in preventing litigation before it starts.

The firm is a member of Eagle International Associates which is an international network of independent insurance defense law firms.
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Client Information
Insurance Clients
Acuity InsuranceAFLAC - American Family Life Assurance Company of Columbus
AIG/American International GroupAIU Holdings, Inc.
Allstate Insurance CompanyAmerican Casualty Company of Reading, PA
American Family Insurance GroupAttorneys Liability Protection Society (ALPS)
Chartis InsuranceChurch Mutual Insurance Company
Colonial Insurance Company of CaliforniaContinental Western Insurance Company
EMC Insurance CompanyEssex Insurance Company
Farmers Insurance GroupGeneral Star Management Company
Germania InsuranceGlatfelter Insurance Group
Great Divide Insurance CompanyHawkeye-Security Insurance Company
HCC SpecialtyMercury Insurance Company
Mountain West Farm Bureau Mutual Insurance CompanyMutual of Omaha
National Fire and Marine Insurance CompanyNautilus Insurance Company
New York Life Insurance CompanyThe Northwestern Mutual Life Insurance Company
Royal Maccabees Life Insurance CompanySeaboard Underwriters, Inc.
Seneca Insurance Company, Inc.State Farm Fire and Casualty Company
State Farm Mutual Automobile Insurance CompanyUnited Services Automobile Association (USAA)
Verex Assurance Inc.Wausau General Insurance Company
Zurich American Insurance Company
Non-Insurance Clients
Adventist Risk Management, Inc.Claim Indemnity Services, Inc.
CLC Inc.J.R. Simplot Company
National Tank CompanyPhillips Petroleum Company
Velsicol Chemical CorporationWoodward Governor Company
Self-Insured Clients
Amazon.comClayton Homes, Inc.
CRST International, Inc.FedEx Ground
Prime, Inc.
Third Party Administrators
Gallagher Bassett & Co.Sedgwick CMS
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Personnel Information
Partners
William M. McKellar
Cheyenne, WY
E-Mail:bmckellar@mtslegal.net
Admitted
  • Wyoming, 1982
  • Colorado, 1982
  • U.S. District Court, District of Wyoming, 1982
  • U.S. District Court, District of Colorado, 1982
  • U.S. Court of Appeals, Tenth Circuit, 1982
  • U.S. Supreme Court, 1982
Additional Biographical Details:
Super Lawyers Business Edition 2007-2014; Mountain States Super Lawyers 2007-2014
Memberships:
  • The Colorado and Laramie County (President, 1990-1991) Bar Associations
  • Wyoming State Bar
  • Defense Lawyers Association of Wyoming (DLAW)
  • American Board of Trial Advocates
Education:
  • University of Northern Colorado, B.A. (magna cum laude), 1979
  • University of Wyoming, J.D., 1982
Born:1950
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Julie N. Tiedeken
Cheyenne, WY
E-Mail:jtiedeken@mtslegal.net
Admitted
  • Wyoming, 1981
  • U.S. District Court, District of Wyoming, 1981
  • U.S. Court of Appeals, Tenth Circuit, 1982
Additional Biographical Details:
Super Lawyers Business Edition 2007-2014; Mountain States Super Lawyers 2007-2014
Memberships:
  • Wyoming State Bar
  • Laramie County Bar Association
  • Defense Lawyers Association of Wyoming (DLAW)
  • Defense Research Institute
  • American Board of Trial Advocates
Education:
  • Purdue University, B.S., 1975
  • University of Wyoming College of Law, J.D., 1981
Born:1954
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Sean Scoggin
Cheyenne, WY
E-Mail:sscoggin@mtslegal.net
Admitted
  • Wyoming, 1998
  • U.S. District Court, District of Wyoming, 1998
  • U.S. Court of Appeals, Tenth Circuit
Memberships:
  • Wyoming State Bar
  • Laramie County Bar Association
  • Defense Lawyers Association of Wyoming (DLAW)
  • Defense Research Institute
  • American Board of Trial Advocates
Education:
  • University of Wyoming, B.S., 1995
  • University of Wyoming College of Law, J.D., 1998
Born:1969
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Brian J. Hunter
Cheyenne, WY
E-Mail:bhunter@mtslegal.net
Admitted
  • Wyoming, 2008
  • U.S. District Court, District of Wyoming, 2008
Memberships:
  • Wyoming State Bar
  • Laramie County Bar Association
  • Defense Lawyers Association of Wyoming (DLAW)
Education:
  • University of Wyoming, B.A., 2000
  • University of Wyoming, J.D., 2008
Born:1973
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Of Counsel
Michele K. McKellar
Cheyenne, WY
E-Mail:mmckellar@mtslegal.net
Admitted
  • Wyoming, 1986
  • Colorado, 1987
  • U.S. District Court, District of Wyoming, 1986
  • U.S. Court of Appeals, Tenth Circuit, 1986
  • U.S. District Court, District of Colorado, 1990
Memberships:
  • Wyoming State Bar
  • The Colorado, Larimer County and Larimer County Women's (President, 1991) Bar Associations
  • Defense Lawyers Association of Wyoming (DLAW)
Education:
  • The University of Texas at Austin, B.S., 1974
  • University of Wyoming, J.D. (with honors), 1986
Born:1951
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Associate
Dino G. Moncecchi
Cheyenne, WY
E-Mail:dmoncecchi@mtslegal.net
Admitted
  • Colorado, 2012
  • Wyoming, 2013
  • U.S. District Court, District of Colorado, 2013
  • U.S. District Court, District of Wyoming, 2013
Memberships:
  • Wyoming State Bar
  • The Colorado Bar Association
  • Defense Lawyers Association of Wyoming (DLAW)
Education:
  • University of Wyoming, B.S., 2007
  • University of Wyoming, J.D., 2012
Born:1984
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