There's many risk if you're looking for mining hosting, I think if you're just looking for stranger without any reputation in this forum or someone that you doesn't know on the real life, you might get scammed. Other thing is how you can sure if he's really good to take care of your hardware etc since it's need regular maintenance.

I don't know why you seems to force yourself to be take a part to become a miner, just buy Bitcoin on an exchange and hold it, you will get benefit too for the return.