I am quitting a job where I earn commissions and they pay out those commissions staggered over the following months. I have officially put my 2 weeks notice in and was wondering if the company is legally obligated in the state of VA to pay out what I have earned.'

If anyone knows of the "official site" where this policy is listed and could guide me there I would appreciate it as well.

The closest thing that I'm able to locate was this item pasted below:

"Must an employer provide or pay for an employee for vacation, holiday, sick, or severance pay?
The law does not require any employer to provide fringe benefits of any kind, such as vacation, holiday, sick pay, severance pay, and retirement benefits. If the employer agrees to provide such benefits, and the employee performs work in reliance on that promise, the employee may be entitled to the benefits as a matter of contract law, and may file a private lawsuit in court to require the employer to give benefits. DOLI cannot assist with these claims."

Generally speaking commissions are defined by company policy. I'm sure at somepoint you were given the specs for the commissions program that your firm has in place. If you no longer have these documents, your boss or HR should be able to readily provide them to you and answer any questions you may have.

Useful link:
http://www.doli.virginia.gov/whatwedo/labor_law/powp2_faq.html