Company Bio

IRRE Group opened it's doors in 2015 in beautiful Vero Beach, Florida. The company vision has been to provide exceptional customer service in the field of real estate sales and marketing by combining a talented group of professionals with diverse career paths and backgrounds. The knowledge of the real estate market is what sets us apart from the other brokerage firms in Florida. IRRE Group has associates from Miami to Melbourne and has closed hundreds of real estate and business transactions since 2015. Our team of real estate professionals has extensive experience in the fields of agriculture, construction, finance, banking, architecture, land planning, development, real estate valuations, consulting, community management and marketing. Founded on principals of hard work, honesty, integrity and diligence Indian River Real Estate Group has grown into a five star real estate business serving the State of Florida. We built our business on repeat customers and word of mouth advertising. IRRE Group is the obvious choice for the buyer or seller who demands the most from their agent. 
IRRE Group was originally formed in Indian River County but has expanded into Martin, Saint Lucie, Okeechobee, Brevard, Palm Beach, Broward and Miami-Dade counties. IRRE Group has closed over $350,000,000 in real estate transactions since 2015. We attribute our success to the establishment of a hard working, knowledgeable and dedicated team of professionals. A brief bio for some of our sales agents and brokers is provided below:

Mark A. Moore

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Graduate of University of Florida (Economics)


Licensed Real Estate Broker (BK3187505)

Licensed Community Association Manager (CAM42329)

State-Certified General Real Estate Appraiser (RZ3695)

Mark A. Moore is the principal broker of Indian River Real Estate Group LLC.  Mark is a graduate of University of Florida where he received a Bachelor of Science in Economics. Mark is a licensed Real Estate Broker, CAM (Community Association Manager) and a State-Certified General Real Estate Appraiser. Mark specializes in commercial and residential real estate brokerage and works as an independent real estate consultant for national banks, government agencies and real estate investors.  Mark founded IRRE Group in 2015 and since that time IRRE Group has successfully closed over $350,000,000 in real estate transactions and continues to expand. With a diverse backgrounding in real estate sales, valuations, management and investing, Mark is regarded as one of the most knowledge and hard working real estate professionals on the Treasure Coast. 


Mark resides in Vero Beach, Florida with his three children and his wife, Lisa. Outside of work he serves his community as a volunteer youth soccer coach with Indian River Soccer Association and participates in various local charity events.  His organizations of interest include Hibiscus House, Heathcoat Botanical Gardens, Ducks Unlimited, March of Dimes, NWTF and CCA.


Contact Information:


Office: 772-410-4115 ext. 101

Cell: 772-532-4801



Tim Stieren

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Licensed Read Estate Sales Associate (SL3366385)

REALTOR®- (Member of the Realtors Association of the Palm Beaches and Greater Fort Lauderdale)

Palm Beach County Resident since 1999


Tim Stieren made the transition to real estate full time in 2016.  Prior to this he traded and managed money in the futures market for private clients and funds as the owner and operator of Stieren Trading, LLC. and Stieren Global, LLC for more than a decade.   Tim personally made his first real estate investment in 2008.  Seeing the investment potential in real estate and the flexibility to be more family friendly, he has fully transitioned into this new adventure and real estate career.  Tim is a licensed real estate associate and candidate member of CCIM.  He has extensive knowledge of northern Palm Beach County and Investment properties throughout Florida.


Tim lives with his wife, Christina, two children, and dog in Palm Beach Gardens.  He enjoys spending time with his children exploring the outdoors, hunting, fishing, and going to the theatre with his wife.  He is a member of Ducks Unlimited, NWTF, United Waterfowlers FL, and the Young Friends of the Kravis Center.   Tim also understands the importance of giving back to the community including donating various charities, one of his favorites being the Florida Sheriffs Youth Ranches. 

Contact Information:


Office: 772-410-4115 ext. 108

Cell: 561-818-4356


Steven Hildebrandt


Steven Hildebrandt is a REALTOR® that is 100% committed to his clients, whether they are listing or purchasing properties. With nearly three decades of combined experience in Real Estate, as a Property Manager, Home Inspector, and Building Contractor, Steven has a rare combination of knowledge and expertise to ensure a smooth and successful transaction.

Steven is a long term resident of Florida and is highly familiar with this real estate market. He assists his clients in seeking / selling primary residences, second homes, vacation homes, and investment properties including:

• Condominiums
• Townhomes
• Single-family residents and estates
• Farm and equestrian properties
• Land and acreage
• Country club community properties (golf and tennis)

As a property manager spanning 18 years, Steven managed and oversaw 24+ diversified large-scale properties. As a result, when he is working with his clients, he knows the ins-and-outs of real estate to ensure all goals are met.

Steven brings a common sense and logical approach to real estate. He is a highly personal professional whose foundation for success is based on integrity and results. His mission statement is: “Your goals are my goals.”

In his free time, Steven enjoys golf, biking, physical fitness, travel, and family activities. He is married to his wife, Judi, for over 27years and has a son, Eric, currently attending University of North Florida.

Licenses & Certifications:

Real Estate Sales License - SL658402

Certified Building Contractor - CBC058221

Community Association Manager - CAM22172

Wind Mitigation Inspection - 070609HMI 

Contact Information:


Office: 772-410-4115 ext. 111 

Cell: 561-906-005


Eddie Dunford

Sales Associate

Contact Information:

Office: 772-410-4115 ext. 102

Cell: 772-766-4382



Chip Miner

Sales Associate

Contact Information:


Office: 772-410-4115 ext. 107

Cell: 772-633-6640


Julia Busch

Sales Associate

Contact Information:


Office: 772-410-4115 ext. 103

Cell: 772-216-1048


Stephen M. Boyle

Broker Associate 

Contact Information:

Office: 772-410-4115 ext. 106

Cell: 772-538-5344