The reason that it is very unlikely that you will find a loan for this amount is that the amount of cost associated with the loan is more than the RESPA guidelines would allow to be made on the loan. RESPA is the Real Estate Settlement Protection Act (I am quite sure this is right), and was passed by the government to prevent over-charging on borrowing. The costs associated with underwriting and closing a loan are more than is allowed.
I am not sure what kind of property you are planning to buy, or what the cost is. If this is not a purchase, and you want a $15,000 loan on a home you own free and clear, you can take out a line of credit on it. If you have cash to close on a purchase, you can take out a first position home equity line after closing.