A University of Michigan lawyer told a judge in Detroit the state has no right to overturn the hundreds of same-sex unions performed in the state.

More than 300 same-sex couples married in March after U.S. District Judge Bernard Friedman struck down the state's ban on gay marriage. An appeals court later suspended the order and placed a moratorium on additional same-sex marriages in the state.

"The state cannot mandatorily divorce you," University of Michigan law professor Julian Mortenson said

Michigan Gov. Rick Snyder says he can't recognize same-sex unions while the issue is in appeal.

Michigan Assistant Attorney General Michael Murphy argued "these things are not straightforward."