text: Answer to first paragraph: NO.
  
  A lay person who can celebrate Mass is an oxymoron.  A lay person who can celebrate Confession, Anointing of the Sick, and Confirmation is an oxymoron.  The ability to celebrate these sacraments by definition, presupposes the valid reception of the Ministerial Priesthood.  
  
  By definition, a priest is a lay person who has received the Sacrament of Holy Orders.  AS such, they are no longer lay.  A lay priest makes as much sense as a lay deacon or a lay bishop.  There is no such thing.
  
  The Sacraments of Baptism and Marriage can be celebrated by a lay person in theory, but not the other Sacraments.