I believe most states have residency requirements.
See my post #19 - Mass doesn't.
Why do you think this was even brought before the courts in the first place? Methinks the average county clerk is aware of any residency requirements, and there were none. But the Mass Supreme Court, having first written new law in allowing gay marriage, now nullifies existing law to contain the backlash from an influx of out-of-state gays to marry there. But if gay marriage is legal as deemed by the court, there are no residency restrictions to get a license.
Don't get me wrong - I am opposed to gay marriage. I am just pointing this out as yet another example of the Mass Supreme Court legislating from the bench.
No, the law dates back almost a century and stemmed from Massachusetts approving marriage between cousins.
The pro-homo cheerleaders will go into a hissy about this targeting the turd burglars, but it really was applying existing statutes to "same-sex unions."