How do I enter the sale of a property that I received thru a life estate?

My father put his house in my name while maintaining life rights until his death in 2013.  I sold the house last year.  I had not lived in the house for two of the previous five years, so I did receive a 1099 for the sale.  When filling out the tax forms, do I list this as an investment property that I inherited, or should I list it another way due to the life estate?  I have the tax assessment for the value at his death to use for the cost basis.  Do I enter this as the 'amount paid' when filling out the tax forms?