National Asset Svcs. appoints Calza as chief financial officer

National Asset Services, one of the nation's leading commercial real estate firms with a nationwide reputation for enhancing property value through an uncompromising and transparent approach to asset management, has appointed Oliver Calza, CPA as chief financial officer. Calza brings 20 years of finance and accounting experience to NAS along with a career in the telecommunications and commercial construction industries as well as in public accounting. His responsibilities include the overall financial management and transparency of the company.