Always check with a real estate attorney to see if the property needs to go through a probate process in order to sell.
Probate is the official way that an estate agent gets settled under the supervision of the court. Not all assets are subject to probate it depends on how the property was owned.
An Estate Sale is held by an owner's heirs or loved ones, or a company or real estate agents they've hired to handle the process. Estates usually need to be liquidated quickly and completely due to downsizing, debt, divorce, or in some cases, death.