Camila purchased a house for $$89,000,$ spent $$56,000$ upgrading it$,$ and recently had it appraised at $$212,900.$

The house is being rented to a family for $$1,200$ per month, the maintenance expenses average $$200$ per month,

and the property taxes are $$4,800$ per year. If she sells the house she will incur $$20,000$ in expenses. She is

considering converting the house into professional office space. What opportunity cost, if any, should she assign

to this property if she has been renting it for the past two years?