Final answer:
The niece's basis for depreciation (cost recovery) would be $61,000.
Step-by-step explanation:
The niece's basis for depreciation (cost recovery) would be the lower of the fair market value or Nancy's basis in the crane. In this case, the fair market value is $61,000 and Nancy's basis is $80,000. Since the fair market value is lower, the niece's basis for depreciation would be $61,000.