The bar to get that done seemed too high before he lost all of his money. Now that's done there isn't much of a point, apart from protecting his house. My mom is on the deed as well so there shouldn't be too much risk there, though I've tried to convince her to put it into a trust for multiple reasons.
Recommend setting up deed monitoring/property alerts if your local property records/recorder supports it, should notify you if any documents are recorded or transfers attempted without your knowledge against the property.
Sorry for your loss.