Creatively Financing An Option Deal...

Dear Group, I had a quick question. I was wondering if the following was possible: Property: 62- Unit Rental Property in Manhattan. Ask: 5 Million My Strategy: - Obtain a 90 to 120 day option on the property. - Seek traditional financing for property. After speaking with my mortgage broker, he said that a 25% downpayment would be required approx 1.2 Million If during the option I sell 10 Apartments at $150,000 each, I have 1.5 Million - enough to cover down payment and possible closing costs. Thus I would be left with: 52 Apartments @ 4 Million dollars, with a 1million dollar downpayment from the sale of 10 apartments. This seems like a creative way to leverage a couple of dollars into a multi-million dollar deal. Can someone comment on whether or not this is a viable strategy? -Angel