Our Credentials
KC MASS is owned and operated by Mark and Sharon Irvin. Mark and Sharon have over 30 years of combined experience in real estate and construction. They have dedicated their business to implementing lifelong design concepts for barrier-free living in your home throughout all life stages.
- Licensed Real Estate Broker
- Certified Licensed Building Contractor
- Certified Aging-in-Place Specialist (C.A.P.S)
- Certified in the area of Lead Safe Work Practices
- Better Business Bureau
- 50+ Housing Council
- National Association of Realtors® (NAR)
- National Association of Home Builders (NAHB)
- Home Builders Association of Greater Kansas City (HBA)
- Kansas City Regional Association of Realtors (KCRAR)
- Homes Eliminated of Restricted Obstacles (Project H.E.R.O.) International Codes Council Foundation


