Figuring tax deductions on rental property

Q. I have two questions in regards to rental properties. On June 30, 2010, I moved out of my primary residence that I owned and rented it out July 1, 2010.

First question is, how do I determine the value of the home to calculate the depreciation? I purchased the property in 2007 for $192,000 and lived in it until June 30, 2010. Of course the value has dropped, since it’s a Florida property. But what does the IRS use to determine the value?

Second question is, since I lived in the property for six months and rented it out for six months in 2010, can I only depreciate and write off expenses for six months? I’m assuming that is how it’s done, but cannot find anything to detail that for me.

via Figuring tax deductions on rental property