Our Experts

Karen Fierro

Karen Fierro, CPA, MST

Partner, Tax

Karen Fierro is the Partner of Trusts & Estates. She uses her expertise to advise individuals and families on complex tax strategies to build and preserve wealth.

In her role as Partner of Trusts & Estates, Karen is leading the team as an integral segment of the newly formed Wiss Family Office, providing estate planning support tailored to the needs of ultra-high net worth families.

Karen enjoys interaction with people and finds in-person or ZOOM meetings are the best way to connect with clients. Karen believes being present for a client means being responsive to their questions when they need assistance the most. Listening, informing, and advising is the key to building relationships as a trusted advisor.

Karen joined Wiss in May of 2021 as Partner Trust & Estates with a background of over 15 years in all aspects of Trust & Estates, both domestic & international, and a solid foundation in general taxation and accounting.


BA – Accounting
Rutgers University with honors

Villanova University

Certificate in Estate Planning
Villanova University

NJ Certified Public Accountant

Beyond Wiss

Karen most enjoys spending time with her family and two dogs, whether on a hike, run, or at the beach in Rhode Island. Karen enjoys the outdoors and is an avid runner. Traveling is another of Karen’s passions. Karen contributes to various causes including Doctors Without Borders.

Professional Affiliates

American Institute of Certified Public Accountants

Member of the Board of Directors, Estate Planning Council of Northern New Jersey