I have presently to invest $$120,000\mathrm{.}00$ which I would like to invest in three buildings. $1$ eight family unit and $2$ four family units. I would like to put down a downpayment of $$80,000.$ On the $8$ families and $$20,000$ each on the $2$ four family units. It would be nice to have some money put aside for $$rainy$$ days. But for now I am almost ready for my investment venture.

I am a risk taker, and I believe that the greater the risk the greater the returns. All the investment buildings must be in New York.

Monthly mortgage on the buildings should not exceed $$7000$ for the $8$ families and $$3500$ for each of the $4$ families. create an optimum portfolio with the highest risk