Does home buyer need to satisfy judgements against them to aquire title to real estate?

This depends. If there is mortgage financing involved, normally the lender will require that it be in first position or it will not make the loan. If there are exisitng liens and judgments, the lender would not be in first position.

If there is no financing involved, and no tite insurance, you have the right to acuqire the property without clearing those items, so long as you understand that they will likely attach to the property you are acquiring.