know it is void if you married to two women in some states if you get married? But what if you get married at same time is void
1 attorney answer
It is unlawful in all of the US for one person to be married to more than one other person at the same time.
Whether the "weddings" are done at one event or multiple events is not relevant.
What is unlawful is being married to more than one person at the same time.
In WA, it is not unlawful for multiple persons to be in relationships with other as long as they do not try to be married to more than one person.
Some other states do still have laws against persons having sex outside of marriage. There likely is no active prosecution of alleged violations.