On the downside, many lenders do not offer 100% financing for properties that are not owner occupied. Those that do may charge higher rates which partially offset the benefit of not having to pay a down payment. It is also important to take into consideration the fact that assuming a higher level of debt will increase your monthly payment, making it more difficult for your property to generate a positive cashflow on an ongoing basis. This is a particularly important consideration. There is no free lunch; pay now or pay later.