Lisa M. Osselaer

CPA | Tax Principal



Total Experience




Specializing In:

  • Construction & Real Estate
  • Trusts & Estates


University of Nebraska-Lincoln

Meet Lisa

Lisa has more than 35 years of experience in public accounting, ranging from federal and state taxation to financial statement preparation and tax consulting. She works with closely held companies and their owners to meet their wide-ranging tax, accounting and financial needs, and also advises trustees and personal representatives on accounting, administration and tax filings for trusts and estates.

Prior to joining REDW, Lisa was a partner with Phoenix-based Edwards, Largay, Mihaylo & Co. (ELMCO), which joined forces with REDW in late 2022 to better serve their combined clients and the Arizona market.

Professional Qualifications and Memberships

A Certified Public Accountant (CPA) licensed in Arizona, Lisa is a member of the American Institute of Certified Public Accountants (AICPA) and the Arizona Society of Certified Public Accountants (ASCPA).

“I'm proud of the accounting services I provide my clients on a daily basis to help them make quick decisions that are based on up-to-date financial information. We're able to help grow their business while relieving the burden of tax compliance.”

Lisa M. Osselaer CPA | Tax Principal

Community Involvement

Lisa serves as Treasurer on the Board of CASA Academy, part of the “New Schools for Phoenix” incubator, a highly selective and competitive non-profit program devoted to expanding educational opportunities to students throughout Arizona.

Connect with Lisa