Partners and Associates

Partners and Associates

A hybrid team of accountants, advisors, and consultants whose collective experience and diverse backgrounds ignite ideas, reconfigure approaches, and recommend strategies and innovative solutions for our clients.


7887 E Belleview Ave
Englewood, CO 80111

Tel: 720.531.4410


Private Client Services

Areas of Focus

  • Income tax planning for closely held businesses and individuals
  • Estate and succession planning
  • Wealth transfer planning
  • Transaction structures
  • Real estate developers


Construction and Real Estate


Montana State University 
  • Bachelor of science degree in accounting

Lyle Mattern, CPA


Lyle Mattern is a partner with more than 30 years of experience in federal and state taxation and planning. He has a strong focus on and deep experience in a variety of industries including professional services groups, closely held businesses, and real estate developers. Lyle specializes in income, estate, and wealth transfer planning for closely held businesses, individuals, and families.


  • Certified Public Accountant

Professional Memberships and Activities

  • American Institute of Certified Public Accountants (AICPA) - Member
  • Colorado Society of Certified Public Accountants (COCPA) - Member
  • Valley Country Club - Board member and former president