Distressed tax sold properties in cook county illinois who is the Owner??

[Mike Chubb]

ok my question is if the owner has abandon the property and has not paid taxes in years and some of the taxes have been sold in a tax sale by a tax buyer.BUT have not yet been deeded to the tax buyer/buyers does the owner still have claim to the property? Also if the owners have no interst in saving tis property can i buy the taxes,all the liens and encumbrances and then be the owner? or do i have to have the owners sign over the propertys to me?