The best advice I ever got about hiring people for any job is to ask professionals in that industry or job position what they would look for when hiring someone to do their job. Reach out to any friends you have that are in the business arena as well. Coming to this forum is a great idea.
What I would do first is pull up an organizational chart (there is a good one in the E-myth book). I would then fill out all the jobs you need people to do, their roles and responsibilities, accountabilities and the level of expertise you might need.