About Patrick

Patrick Sweeney is a partner in Marcum’s Rochester, MI office. He has more than 25 years of experience in public accounting and provides consulting, accounting, taxation, and attestation services. His clients span a wide range of industries including but not limited to those in manufacturing, construction, and service-based sectors. He also contributes to efforts supporting the growth of the Firm’s charter school and nonprofit audit practices.

Patrick is recognized within his field and frequently speaks at seminars covering topics of interest to charter schools. He also speaks in front of many not for profits to discuss proper governance and best practices. His clients include many of the largest charter schools in Michigan and he consistently works to grow the Firm’s practice serving charter schools, while bolstering Marcum’s profile among nonprofit and governmental entities.

Prior to joining Marcum, Patrick was a Partner of Croskey Lanni, PC, which merged with Marcum in 2024.

Professional & Civic Affiliations

  • American Institute of Certified Public Accountants (AICPA)
  • Michigan Association of Certified Public Accountants (MICPA)
  • Michigan School Business Officials (MSBO)
  • Michigan Nonprofit Association
Practice Focus



Bachelor of Arts in Accounting
Wayne State University