If my mother n law has life estate on her land and I have a mobile home on it when she passes would I have to move or do you have the right to stay?

When your mother-in-law passes away, her life estate interest will terminate according to the terms of the life estate. You may have to vacate the property depending on the specific terms of the life estate arrangement and any agreements made with the estate's beneficiaries. It is recommended to review the legal documentation and consult with an attorney for guidance on your rights to stay on the property.