Writing a will doesn’t automatically “disinherit” the spouse.
But she will first need to retain a USA based attorney to show the court that she was legally married to him AND then she can go after any assets held under common laws (community property) such as houses, etc. See the following article. I would suggest she move quickly as she needs to file a motion in court against the will. If she can show that she was indeed legally married then she’s entitled to half of assets held in Common law states.
Even if the Will Explicitly disinherits the spouse she will still be entitled to his/her community property share or Right of Election share in certain states. I suggest she call this law office immediately at 1-424-320-9444. They can advise her. She needs to have someone who speaks English as they prob can’t speak Thai.
************************************************