Spouse of Owner of Title is deceased

If the spouse of the owner of the Title has long been deceased, is an extrajudicial settlement needed , or she can just change the status to widow? The owner wants to sell the property.

There would be a need to settle first the estate (extrajudicial means is more preferred, as it is a lot more simple), unless it can be established that the property is not conjugal. If it is conjugal, then the deceased spouse owns half of the property, which would then be inherited by the compulsory heirs upon his death. https://www.alburovillanueva.com/wills-succession-inheritance Because of this, it is not only the surviving spouse who solely owns the property. Thus, simply changing her status in the title as "widow" would not be enough. The estate of her deceased spouse would have to be settled first.

The property was inherited in 1999 by the surviving spouse. Is there a need for extrajudicial settlement even if it is not part of conjugal property. If I buy said property prior to extrajudicial process, what is the way I can protect my interests?

^they don't have any children?