Shore Sotheby's International Realty, in New Buffalo, MI was established in 2008 to serve both the Harbor Country Area of Michigan and Metropolitan Chicago. As a popular vacation area within close proximity to Chicago it only made sense to expand and offer our services. As a member of the Sotheby's International Realty® network we now provide access to properties from South Haven, to the beach communities in Northwest Indiana, to the many lakes and farms - as well as nationally and internationally. We Are. Shore Sotheby's International Realty.