Hello,
Thank you for allowing us to assist you with this problem.

I'm sorry to hear that your mother is passing.

Since you mother has no Will, when she passes all her property including the house would pass by NY Intestate law which means that you and all your siblings would inherit the house equally. You and your sibling obviously can allow your autistic brother to live in the house his entire life if you wish but if at least one sibling disagrees, then that sibling could force either a buy out of his/her share or force a sale of the house. The legal way to ensure your mother's wishes are carried out is to make sure there is a new deed drafter after your mother passes which gives your autistic brother a Life Estate in the property then a remainer to you and your siblings. This will ensure that your brother gets to live in the house until he passes.

As I mentioned earlier about the Intestate laws, you and your siblings would inherit the house by law without probate. You should contact the appropriate tax office in your County to see what the requirements are to list you and your siblings as owners. In most Counties it would as simple as recording a certified copy of the death certifate. However, you may also wish to consult a local general or real estate attorney to prepare a deed with a Life Estate for your brother to make the title to the property "cleaner."