I purchased a house in 2008 which was my primary residence. In April 2013, I converted to an investment property, since I was underwater to the point where I couldn't sell it.
In my 2013 and 2014 taxes, I treated the property as an investment, taking losses on depreciation and real expenses over rental revenue.
I just sold the property (November 2015). From what I've read, I have to calculate net gain on my property as my sales price minus the value of the home at the time it converted to an investment, rather than calculating a loss from the time I bought it.
I didn't do an appraisal or even a real market value analysis at the time I converted, so I have no idea what it was worth when I converted (only that it was significantly less than what I paid for it).
I plan on talking to a tax accountant to figure out how to handle this mess, but before I do, what should I keep in mind or prepare?