just a note to add... if your sis in law wants to sponsor her husband, she has to get a NOC from the company (and this is where the mandoub might have said no). she can speak to her HR and get the sponsorship letter though.

BTW, looking at one of the threads a couple of days ago, there seems to be a new rule that the salary of the sponsor has to be 5000 QR to sponsor a family member.