John Corias was born in 1967 in Sydney’s Outer West, where he attended his High School Years at Whalan High School. Certainly back then dubbed the “school of hard knocks”, but now should be renamed the ‘rose amongst thorns’, many prominent businessmen and women, leading medical specialists, and generally leaders in their field have come out of this fine school, and then there is ‘John’. After completing his HSC in 1985 he attended University to obtain his degree, and immediately started into private practice with his partner and brother Peter. They both purchased a business that had been trading since 1961 called Management & Accountancy Service Pty Ltd, and began to revolutionise the operations of that business. Today the business is known as mas accountants and has a very strong positioning as the original accounting office for small business.