Upon death of decedent, estate inherited shares of no-longer-occupied co-op apartment. Estate placed unoccupied apartment on market, but it took nearly two years to sell it. During that time, estate paid for insurance on apartment (as required by proprietary operating lease), as well as monthly "maintenance" fee billed by co-op corporation (covering capital improvements, real estate taxes, interest, utilities for common areas, wages of building staff, etc.). Would the full monthly maintenance fee either be added to the basis of the co-op shares as investment ownership costs, or deductible as estate administration expenses?
