I was never married to my son's father, there was never a custodial judgement. He was rarely involved in my son's life. I am considered custodial parent and he is considered non custodial parent. My question is... Do I have to send my son out of state to visit his father when it is a financial hardship to me to do so?

You only need to follow any existing court orders. If there are no court orders that address custody/visitation, then you have no legal obligation. If dad wants a custody agreement, especially one that addresses complications like out of state visitation and expenses, then he'll need to go to court and get such an order. Generally speaking, the court puts the burden of transportation on the parent who created the distance. If you moved away from dad, you may be ordered to pick up part of the tab. If dad moved away from you and the child, he should be expecting to bear the brunt of visitation costs.

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While pointers can be helpful, ultimately the number one lesson in any legal action is: don't take legal advice from books, family, friends, co-workers, police officers, grocery clerks, web sites, or people on legal message boards. The only person who can give YOU legal advice is YOUR attorney.

http://www.aardvarc.org

I agree with aardvarc. Have you browsed through the information in LawInfo's Free Legal Resource Center to learn more about your issue yet? See: http://www.lawinfo.com/consumer.html and http://resources.lawinfo.com/en/index.html. You can certainly try to speak to a lawyer to determine what legal options may be available. In the meantime, you may be able to learn more on your own. Search the "Free Legal Resources" tab, or browse the Consumer Resources. Good luck.