A seminar on all aspects of buying a business by BusinessesForSale.com, which claims to be the world’s leading website for buying and selling enterprises. The site, whose chief executive is 30-year-old West London Synagogue member Leigh Nissim, lists 12,000 businesses for sale in 70 countries – including a kosher deli in Merseyside, kosher bakeries in New York and a restaurant in Israel.