Can people with past criminal convictions apply for residency?

I am thinking of relocating to Macedonia to help a friend start a business. However, I have a past criminal history dating back to 1988. Your comment suggests that I would not be allowed to be a resident which I need because I can't leave every three months. And so, I was wondering if that's the law of the land - people with past criminal convictions cannot apply for residency?

Thanks,
Shawn