Expenses related to acquisition of the property are added to the cost-basis of the property.
Expenses related to acquisition of the loan are amortized (not capitalized) and deducted (not depreciated) over time.
Your refinancing has nothing to do with property acquisition. So nothing there adds to the cost basis. Additionally, the refinancing occurred while the property was "NOT" classified as rental real estate. So there are no amortizable rental expenses there. Your only amortizable expenses are those incurred upon the initial acquisition of the original loan when you originally purchased the property.
