Final answer:
Without a will, a deceased bachelor's estate, including his home, is transferred to his legal next of kin per state intestacy laws after any debts or taxes are settled. If the sister is the designated beneficiary, she receives ownership of the home following the probate process.
Step-by-step explanation:
Before the transfer of the home, when a bachelor dies and leaves it to his sister, the process of handling the estate is based on intestacy laws. This is because the deceased person did not have a will or trust established. Therefore, the courts will control the passing of assets based on the state's intestacy laws, which typically distribute the estate to the deceased's legal next of kin. The sister, being a sibling, is often one of the heirs considered by these laws, unless there are surviving children, parents, or other relatives that are given priority by the state. If the bachelor legally designated his sister as the beneficiary of the home, the estate would transfer to her after the probate process, where the will is validated and any outstanding debts or taxes are paid.