What is an "ancillary administration"?

‚ÄčAn "Ancillary Administration" occurs when a probate needs to be opened in another state, generally because a decedent owned real estate or other property there.

Example:  I had to open an ancillary administration in Illinois for my mom’s estate because she owned land in Illinois. This was necessary for me to pay-off the debt and sell the property in Illinois, but the land and the proceeds from the sale were then reported as part of the probate process in South Dakota.