Estates And Tax Deeds

What is the deal with buying a property at tax deed auction that is owned by the Estate of "Joe Somebody".

Someone in another post told me to be careful, so I went to the clerks office today and physically viewed all the files and I didnt see any obvious problems with the title.

3 of the props going up for auction are estate of properties. I would assume a lot of estate properties go to auction because either no one wants to fly down and deal with it, or there is no family there to deal with it. I am ignorant on the estate owned stuff.

Anyone out there wanna enlighten me? [addsig]