Alisha is considering buying a house while she is at University. She plans to live in the house and also rent to her friends. The house will cost $$300000$ to purchase and it has $4$ bedrooms $(3$ she can rent$).$ She will pay cash for the house! She estimates that she can earn $$32000$ per year in rental income. She estimates that her expenses will be $$16000$ per year. At the end of $4-$years she estimates that she will be able to sell the house for $$580000.$ If she uses a MARR of $4\%$ compounded monthly, what is the present worth of her investment plan?