CORE (real estate)
CORE was founded in 2005 by Jack Cayre (the son of real estate developer and music and video executive Joseph Cayre) and South African immigrant Shaun Osher, an acronym for Cayre Osher Real Estate. CORE consists of over 170 real estate professionals and staff with offices in Chelsea, Flatiron, Union Square, Madison Avenue and Brooklyn. CORE has generated over $5 billion in sales and marketed and sold over 30 new development projects. 
In 2014, Related Companies acquired a stake in CORE to further expand the firm's brand and offerings throughout New York City. 
- New York Daily News: "Hard work and persistence pays off for condo expert Shaun Osher" By Jason Sheftell January 31, 2008
- The Real Deal: "Cutting to the Core" By Candace Taylor November 01, 2010
- The New York Observer: "Getting to the Core: Shaun Osher Talks NYC Real Estate Stardom" by Janet Allon April 4, 2013
- "About". CORE.
- "Manhattan brokers star in realty reality show". The Real Deal. 1 March 2010.