Katherine Stellflue


Financial Planner

Remote Office:
27296 Cranbrooke Drive
Lake Forest, CA 92630
Toll Free: 877-640-6894 ext. 340

Main Office:
Goldstein Advisors
2501 Parmenter Street, Suite 100A
Middleton, WI 53562

Office: 608-831-3230
Toll Free: 877-640-6894
Fax: 608-831-3235



As a financial planner for Goldstein Advisors, Katherine dedicates her time working with clients to ensure they are on the right path towards their goals and dreams while building strong relationships, encompassing every aspect of their lives.

Over 20 years ago, Katherine started as an intern with Jon Goldstein and worked her way up to one of the most successful and top ranked independent practices in the country. She has now made a full circle and is looking forward to being able to have potential for even more growth on a team that genuinely cares about their clients.

Katherine was born at the Holloman Air Force Base in New Mexico. As an Air Force brat, she had moved many times between New Mexico, Arizona, and Wisconsin. She now lives with her husband, son, and a Yorkie named Pancho in Orange County, CA. She obtained her Bachelor of Arts in Business and Leadership from Concordia University in Irvine, CA. She enjoys the outdoors, animals of all kinds, music, exploring new foods and drinks, and volunteering at Working Wardrobes helping people overcome difficult challenges on their way to meaningful employment, including substance abuse, domestic violence, incarceration, homelessness, and military to civilian transition.

Areas of Focus

  • Retirement Planning
  • Estate Planning
  • Tax Planning

Professional Designations & Associations

  • Certified Financial Planner Professional (CFP®)
  • Accredited Portfolio Management Advisor (APMA®)
  • Real Estate Agent