getting funds for my next property

[Josip Galic]

I bought my first rental property this summer and its been rented out pretty much since it was listed on my management companies website. The income is great and I want to get another property asap. the city that Im living in, grand rapids michigan, is growing at a tremendous rate and rents are through the roof. 

I had to use most of my savings for the down payment for my rental and now Im just waiting patiently to save up money for the next purchase. at the pace Im at I dont think Ill be able to buy another property until spring of 2016, unless I hit the lottery or get a new job that pays more. 

What techniques are out there to get funding for a new property besides waiting and saving up my current rental income and income from my job??