help please show a loan amortization sheet

You have an opportunity to buy a property from Recovery Capital Inc. who obtained the property from a foreclosure. Recovery Capital is offering the property for $200,000. If you buy the property, you will need to spend $10,500 in closing, an average of $2,000 per month during the next 12 months for repair costs, in order to prepare the property for sale. Recovery Capital is willing to finance the sale. They could provide $180,000 in financing at 4.5% percent interest for 12 months payable monthly (interest only loan). Your research shows that you could sell the property for $225,000 at the end of one year. Moreover, you estimate about $3,000 in fees and selling expenses in order to resell the property. If you want to earn a 20% percent return compounded monthly, do you think this is a good investment? If not, what counteroffer would you have to make in order to achieve the 20% return