If my father owns 33% of a business and wants to tranfer his shares to me at no cost, how do we go about getting my name onto his share of the business?

Need to look at the Articles of Incorporation, Bylaws, Stock Certificate and any Shareholders' Agreement, Voting trust or other document to determine if thre ar any retrictions on the trasnfer of the shares.  If there are no no restrictions it can be done by an Assigment Separate from Certificate ("Stock Power").