When hiring temporary talent or freelancers:

1. Give clear instructions when you post your job - the more detailed the better
2. Ask for samples of past work
3. Conduct an interview process, just like you would with someone on the ground (ask lots of questions to ensure the freelancer you're talking to is the right fit for you)
4. Look for positive feedback from previous clients
5. Don't always opt for the cheapest bid - your online workforce is already going to be cost effective, go for quality over low cost