James G. Sansone, Esq.
Sansone Group Principal Since 1987

Jim started interning at Sansone Group while he was still in college and worked alongside Senior. After graduating law school in 1987, he joined full time as the firm’s general counsel. Shortly thereafter, Senior told him that he was in charge of negotiating the Dierbergs’ lease for their landmark development Dierbergs Heritage Place. That was the first of many retail developments that Jim was involved with on the brokerage front, construction over sight and representing the company’s zoning and entitlements.

Over the years, Jim served in numerous roles at Sansone Group  including overseeing the multifamily and residential divisions, human resources, legal, zoning and entitlement, and all press related issues. He also oversaw the Commercial Property Management division until 2018 when the brothers distributed leadership to department heads who would in turn report to the brothers as a board.

As the company has matured, Jim spends his time working with development partners and Sansone Group brokers to find opportunities across the country in development, land transactions and tenant representation opportunities.



  • St. Louis University | The John Cook School of Business
    BSBA | Finance (1983)
  •  University of Missouri – Columbia
    Juris Doctor (1987)


Charitable, civic, and social affiliations:

  •  The Missouri Bar Association, Member
  •  Marfan Foundation, Board Member
  • The Bar Association of Metropolitan St. Louis, Member
  •  International Council of Shopping Centers (ICSC)
  •  Boys and Girls Club of St. Louis, Co-chair
  •  St. Louis Zoo Commissioner
  •  St. Louis Zoo Board of Trustees
  •  Urological Research Foundation (URF) Board member
  •  St. Louis University High School, Facilities & Grounds Committee
  •  St. Louis Archdiocesan Catholic Appeal Fundraiser, Chairman
  •  Fontbonne University, Board of Trustees
  •  Cardinal Glennon Children’s Hospital Development Board, President
  •  Developers Advisory Committee for MoDot


Awards & Recognition

  •  Top 10 Development Firm in the US
  •  St. Louis Family Business Award
  •  St. Louis’ “40 under 40”
  •  Commercial Real Estate Hall of Fame
  •  Most Influential St. Louisian
  •  St. Louis King Award presented by The Archdiocese of St. Louis



  • Born April 1, 1961
  •  Married to Kathryn Demmas Sansone
  • Ten children, two grandchildren
  •  At Sansone Group since 1987
  • Enjoys outdoor activities, fishing, hunting, golf, pickleball, and spending time and working out with his family.

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