Mark J. Haldeman | +1 970 379 3372

Mark has consistently been in the top 5% of all Brokers for sales in the Aspen area and, because of his accomplishments, has earned the respect of his peers as well as his customers and clients. In recent years, Mark has represented the Sellers of the highest priced single-family home sales in the state of Colorado on two separate occasions.

Mark moved to Aspen in 1984, at age 27, to open Mark Justin, which became a successful retail-clothing store/guide and outfitting service that he operated for or over 10 years. In 1995, he had the opportunity to acquire the building that housed his operations and subsequently commenced what has become a 27-year real estate career totaling over a billion dollars in residential sales. He has also been involved in Aspen’s commercial real estate market with the development/restoration of the Wheeler Block, the A.G. Sheppard, and Prada buildings. He was honored by Aspen’s Historic Commission for his work.

Mark and his wife, Laura, spend time in South Florida during the “off-seasons.” Their son, James, is a Sous Chef at John Besh’s and Aaron Sanchez’s collaborative restaurant, “Johnnie Sanchez” in New Orleans, LA.

Jennifer Banner | +1 970 471 6200

Jennifer has over seventeen years of experience advising buyers and sellers of luxury Colorado real estate. She has a keen eye for quality and understands what creates value for her clients. Jennifer has developed a loyal clientele and a solid reputation as one of the hardest working brokers in the valley. Her clients appreciate the personal attention and valuable guidance that she offers at every stage of each purchase or sale.

Jennifer  is a member of the exclusive Masters Circle which is comprised of Christie’s International Real Estate top-performing luxury real estate specialists globally.

She has extensive experience working with developers of Aspen real estate, having represented a successful luxury townhome development with total sales in excess of $100M. She was closely involved in all aspects of the development including site identification and acquisition, interior design, marketing, and pre-sales.

Jennifer is a Dallas, Texas native. She was educated at Phillips Exeter Academy and the University of Wisconsin, Madison. She is a former Division I college hockey player and an Ironman.

About Christie's International Real Estate

Christie’s International Real Estate has successfully marketed high-value real estate around the world for more than 30 years. Through its New York City brokerage and invitation-only Affiliate network spanning 48 countries, Christie’s International Real Estate offers incomparable services to a global clientele at the luxury end of the residential property market. The company has luxury real estate offices in London, New York City, Hong Kong, Moscow, Los Angeles, Chicago, and Palm Beach, and its affiliated brokerages have recorded approximately US$500 billion of real estate transactions over the last five years.

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