general labor for demo/cleanup

[Jonathan Thrasher]

I just bought my first house to flip last month and have since done quite a bit of the demo work myself but I'm looking to hire a one or two people to finish some of the demo and haul the crap to the dumpster.  Do I just look for someone on Craigslist?  What about liabilities?  Do I have them sign a waver of some sort?   If anyone in the Grand Rapids, MI area has some referrals for good workers, please contact me and let me know.  Thanks!