The Marriott Rewards Program has been combined with the SPG Program to become one program. You can get all the details of the combined Marriott/SPG Program here.
SPG has a very flexible transfer policy in that you can transfer Starpoints to any person that shares your home address for a minimum of 30 days prior to requesting the transfer. You can transfer any amount of points to that other person and there are no transfer fees. Thank you SPG!
The terms state that the transfers may take up to 5 business days. This is a reasonable statement in that is how long it took points to transfer from Rob’s SPG account to mine when I made a transfer request.