Our Attorneys
Andrew Kottkamp
Andrew Kottkamp co-founded this firm with his long-time friend, Nicholas Yedinak, in 2000. Mr. Kottkamp was born and raised in Pendleton, Oregon, and is a 1982 graduate from University of Notre Dame and a 1985 graduate from University of Oregon School of Law. Mr. Kottkamp was employed as a Deputy Prosecuting Attorney through the Spokane County Prosecutor's Office beginning in 1989. In 1991, Mr. Kottkamp moved to Wenatchee where he has practiced ever since. Prior to co-founding Kottkamp & Yedinak, P.L.L.C., Mr. Kottkamp was a partner with two other local law firms.
Mr. Kottkamp currently serves as Land Use Hearing Examiner for seven area counties and fourteen cities and towns. Mr. Kottkamp has successfully tried cases to a jury in Chelan, Douglas, Grant, Kittitas, Yakima, Spokane and Okanogan Counties. Mr. Kottkamp's practice now focuses on performing services as a Hearing Examiner as well as estate planning, probate, corporate law and adoptions.
Mr. Kottkamp is the past Director General, Assistant Director General, Program Director, Executive Board member and Board member of the Washington State Apple Blossom Festival. He has also served as President, Vice President and Board member of Wenatchee Central Lions and was awarded a Melvin Jones Fellow by Lions International. He has served as President of Keep it in the Valley Foundation, and was on the Executive Board and Executive Committee of the Grand Columbia Council of the Boy Scouts of America. He is a Silver Beaver recipient from the Grand Columbia Council of the Boy Scouts of America. Mr. Kottkamp is currently Secretary of Friends of Scout a Vista and serves as President of the Number 2 Canyon Water Users Association and his own Homeowners Association. Mr Kottkamp and his wife live in Wenatchee and have three grown children
Peer Rating by Martindale Hubbell of Very High in both legal ability and ethical standards with an overall Martindale Hubbell rating of Distinguished.
Nicholas Yedinak
Nicholas Yedinak co-founded this firm with his good friend Andy Kottkamp in 2000. Mr. Yedinak graduated from Eastern Washington University in 1985 and from Gonzaga University School of Law in 1989. Mr. Yedinak worked for the law firm of Johnson , McLean & Rochelli PS., in Spokane before coming to Wenatchee in 1990. Mr. Yedinak lives in Wenatchee with his wife and two children.
Mr Yedinak's practice focuses on criminal law, family law and personal injury. He frequently serves as Chelan County District Court Judge Pro Tem and has served as Special Prosecutor for the City of Wenatchee. Mr Yedinak is currently on the Board of Directors for the Chelan/Douglas County Community Action Building Association. He also served as a board member of the Chelan/Douglas County Community Action Council.
Mr. Yedinak has been practicing law in Chelan County, Douglas County, Okanogan County, Grant County and Kittitas County since 1990. Mr. Yedinak also represents individuals in all aspects of family law to include dissolutions, child suppport modifications, parenting plan modifications, and paternity actions. Mr. Yedinak has 20 years of trial experience and has successfully defended individuals accused of serious felonies and misdemeanors from murder to driving under the influence.
Sean Esworthy
Sean Esworthy joined Kottkamp & Yedinak in 2015. Sean grew up in the Southern California where he graduated from the University of California, Santa Barbara in 2005. Sean then attended law school at Seattle University where he graduated, with honors, in 2010.
During law school, Sean was a Rule 9 Intern for the Marysville Prosecuting Attorneys’ Office. After passing the Washington State bar in late 2010, Sean took his prosecution experience to the beautiful Wenatchee Valley and worked in the role of Assistant City Attorney, where he prosecuted misdemeanors and gross misdemeanors, until early 2013. After that, his practice shifted towards civil litigation in the areas of personal injury, family law, public records, and litigation under Washington’s Residential Landlord-Tenant Act.
Sean’s practice now focuses primarily around criminal defense, juvenile law, firearm restoration, and record vacating. Sean stays up to date on the latest case law updates and innovations in criminal law as a member of the National College for DUI Defense, Washington Defender Association, and the American Association of Premier DUI Attorneys. Sean has a decade of experience as a litigator and has litigated numerous motions, tried over 40 cases to juries and many more to the bench.
Jay Eyestone
Jay Eyestone joined this firm in 2023 after practicing law in Oregon for five years. Jay’s childhood homes were in Winlock, Washington and the Philippines, where his parents served as Baptist missionaries. Jay graduated from George Fox University in 2014 and from Lewis & Clark Law School in 2017. He now lives in Wenatchee with his wife and son.
During law school, Jay worked as a certified law student for the Oregon Department of Justice, defending against petitions for post-conviction relief and federal habeas corpus relief sought by some of Oregon’s most violent offenders. After obtaining his license to practice law, Jay worked as a prosecutor in Jefferson County, Oregon, a public defender in Deschutes County, Oregon, and as a DUI and criminal defense attorney in a leading Central Oregon DUI defense firm. Jay is a former member of the Oregon Army National Guard, having served in the 2-218th Field Artillery (Portland) and 82nd Troop Command (Salem).
Jay is an experienced trial attorney, having successfully tried cases ranging from minor misdemeanors to DUI and serious felonies. He also has substantial experience in vacating/setting aside prior convictions, and restoration of firearm rights and driving privileges. Today, his practice is focused on criminal defense.