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Ratings & Reviews

  • 5.0/5.0

    Cassie is smart, professional, and one of the most competent attorneys I've had the pleasure of working with. She is reasonable and practical while advocating for her clients. She makes sound strategic decisions and is always well-prepared....
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    — Peer

  • 5.0/5.0

    — Peer

  • 5.0/5.0

    Tiffany has been so beyond helpful. She if very knowledgeable and very fair. She is great at explaining concerns from all views and things I would never have thought of. I highly recommend Five Valleys Law !

    — Client

  • 5.0/5.0

    We have been working with Cassie for years on so many different legal matters and she has been so personable, caring, responsible and above all professional and gets results. She has never left us hanging and although we have thrown her cu...
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    — Client

  • 5.0/5.0

    As a small business owner/operator it is very important to have legal councel to help navigate corporate rules, tax law, partnerships, leases, contracts, etc. We have found that with Tiffany and her partners at Five Valleys Law their work i...
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    — Client

About Cassie Dellwo

Cassie is one of the founding members of Five Valleys Law, P.L.L.C. Being raised in the Mission Valley, Cassie grew up with an agricultural background and has a special interest in working with farming and ranching families.  She focuses her practice in the areas of real estate, estate planning, and business law.  She is a proponent of strong planning in life and business as she has witnessed how the use of good planning has blessed many of her clients and how the lack of planning has damaged clients (and friends).   

Prior to founding Five Valleys Law, P.L.L.C.  Cassie worked in North Dakota at a law firm practicing in the areas of foreclosure, bankruptcy, real estate, oil and gas, estate planning, business law, and litigation.  There she learned how to manage crisis and what to really watch for in contracts to avoid litigation traps.  Her past litigation experience has helped give her a keen eye for contract loopholes that would not be caught if she had not had the prior experience.  After nearly six years in North Dakota, Cassie returned to Montana to practice in a mid-sized firm in Missoula.  She continued practicing many of the same areas she practiced in North Dakota, but refined her estate planning and business law practice with the assistance of Five Valley Law co-founder, Paul Fickes.

Outside of the office, Cassie can be found roaming the mountain side looking for huckleberries (if the season is right), golfing, or riding her bike.  However, most of her free time is dedicated to spending time with her extended family throughout Western Montana.


Admission Details

  • 2012, North Dakota
  • 2011, U.S. District Court, District of Montana
  • 2011, Montana

Law School Attended

  • University of Montana School of Law, Class of 2011, J.D.

University Attended

  • Jamestown College, Class of 2008, B.A.

Associations & Memberships

  • Montana Bar Association
  • American Agriculture Law Association