Segregated deductions for real estate agent for out of state house purchase

[Ryan Yu]

Hi, if my wife becomes a real estate agent in New York (we live in NY) and we buy properties in other states such as Florida or Georgia, can we use segregated deductions on houses we buy outside of New York in order to pay less income taxes from my earnings? Do the tax breaks apply only to federal income tax or state income tax also? Thanks in advance.