He is a graduate of the University of Rhode Island and received his Accounting degree from Bentley College. Arnold is the President of his own firm, Godes, Schaffer & Co PC. He is a member of the American Institute of Certified Public Accountants, Massachusetts Society of Certified Public Accountants, and the Massachusetts Association of Public Accountants. He is an officer of the Brookline Chamber of Commerce, and Brookline Rotary. He is a trustee of his condo associations in Newton, MA and Boca Raton, FL. He provides accounting, tax, and consultation services such as facilitating negotiations between potential buyers and sellers of businesses.