1) As per section 34 of the Bombay Stamp Act, 1958, the stamp papers should be in the name of one of the parties who have signed/who would be signing the instruments.
2) If the stamp paper has been purchased in the name of an Advocate, C.A., etc., then such instrument shall be treated as an instrument not duly stamped and shall be inadmissible in evidence.
3) notary would not buy any stamp paper