Josephs has been in international real estate since 1973 in London with Jones Lang Wootton. In 1974 he moved to their Brussels and Antwerp offices in Belgium before joining Hampton & Sons, Paris in 1974. He then went to INSEAD, France, graduating from their trilingual 1977 MBA class and moved to New York before joining Romanek Golub in Chicago, as international investment coordinator. In November 1980, he started his own company, in Washington DC, initially acting for overseas investors in developing five downtown office properties. For the past 28 years he has developed his own real estate portfolio of urban properties as well as advising international clients. He was elected world president of FIABCI, the international real estate federation, 2007-8. He is adjunct professor of international real estate at both Johns Hopkins and Georgetown Universities. He is an academic member of AFIRE an ICSC member and on the Americas board and governing council of RICS.