Meet Our Team

Gene R. Maionchi, CPM
Gene R. Maionchi is the Owner/Broker of Mark III Management Company. Gene has been providing professional property management in the greater Sacramento area since 1974. He received his Certified Property Manager (CPM) designation in 1985 and currently is a member of Institute of Real Estate Management (IREM), National Association of Residential Property Managers (NARPM), Sacramento Association of Realtors (SAR), California Association of Realtors (CAR), and National Association of Realtors (NAR). Gene received his degree in business in 1972 from Shasta College. Gene has served on numerous committees within the NARPM and IREM chapter’s including serving as treasurer and on the board of directors for the Sacramento NARPM chapter.
Gene takes great pride in the fact that some of his existing clients have been with him since he began in this business in 1974 and many more that have been with Mark III Management for over twenty years.

Gary McGraw, Real Estate Sales, Commercial Leasing

Gary McGraw, Co-Owner of Mark III Management Company, is a licensed Realtor and a current member of National Association of Residential Property Managers (NARPM), Sacramento Association of Realtors (SAR), California Association of Realtors (CAR), and National Association of Realtors (NAR).
With a background in Real Estate Sales, Real Estate Development and Real Estate Investment, Gary offers you a broad range of experience to assist you with your Real Estate needs. He always puts himself in your position when he represents you as a Buyer or as a Seller and he does – whatever it takes – working on your behalf during every part of your transaction.
Gary works closely with our Property Manager’s so if you are selling rental property that we currently manage, he makes sure that your current Tenant(s) have minimal disruption during the transition. He also works directly with our licensed vendors to make sure that any necessary repairs and inspections are completed in a timely and cost effective manner. Gary’s specialty is working with out of town owners that want someone to personally follow up on every detail of their sale. He also works with Buyers and welcomes all referrals.
Gary can be reached at our office at 916-920-0561, ext. 105 or his cell, 916-316-1083 or by e-mail.

Mike Challberg, Property Manager
After working for 17 years in a management position for a large corporation in the greater Sacramento area Mike decided it was time for a career change. Having been in a family of property management personnel the transition was effortless. His commitment to customer service in the past made it very easy for him to relate to both owners with their investments, and tenants with their daily needs when issues arise. His ability to handle situations quickly and effectively has made him a great asset to the Mark III Management team.
Having established himself with Mark III Management in May of 2006, Mike manages single family, duplex, and condo/townhomes representing his investor’s interests in finding and maintaining qualified applicants. He is involved in the collection of rents, maintenance, financials, tenant complaints/coordination and inspections of these units. Mike is a licensed real estate agent and is a member of the National Association of Residential Property Managers (NARPM). His portfolio includes rental properties in Natomas, Antelope, North Highlands, Citrus Heights, Fair Oaks, Roseville, Rocklin, and Lincoln.

Nick Maionchi, Property Manager
Nick Maionchi has been with Mark III Management since 2014 after studying Agricultural Economics at UC Davis. Nick received his California Real Estate License in 2014 and is now following in his father’s footsteps as a property manager at Mark III. Nick has been around Mark III Management since his father opened the company over 20 years ago. Nick grew up in East Sacramento making him extremely knowledgeable of the area. His portfolio includes; East Sacramento, Downtown Sacramento & Midtown Sacramento.

Britt Vance, Property Manager
Britt has more than 17 years experience in management of multifamily communities. Prior to her arrival with Mark III Management in August 2013, Britt was a Regional Manager responsible for the operations of approximately 1,900 units in various markets throughout Northern and Southern California. Britt also holds a strong marketing and customer relations background.
Starting out as a leasing consultant, Britt soon came to realize she had a passion for property management. She has devoted herself to placing quality residents in the community while focusing on professional management with the residents in mind. Her goal is to become a Certified Property Manager (CPM) with a Broker’s license.