Everything has been put into her name with a beneficiary listed upon her death. Other that power of attorney for health directives and other legal/financial matters, all seems to be in order. We are getting those done soon. There are only a couple of beneficiaries - I don't expect problems. Is a trust even necessary at this time. She lives in Nevada.
Often a simple will is helpful in even such cases as yours if your mother wants to put one child in charge of dividing things up, or if she wants to leave certain items to one child and other items to another, or if she wants to divide monetary assets (stocks, mutual funds, bank accounts, etc.) unequally. However, if every single asset is covered by a beneficiary designation and she is happy with that, then a will may not be required.
If your Mom has few assets, has already designated beneficiaries for each, and would never need Medicaid assistance, a trust may not be necessary.