My sister and I would like to start RESPs for our nieces. I know that this is possible as long as their mom gives me their SINs. But what I want to know is - will she have access to the account and be able to empty it? Or if we open it, does that mean only we can withdraw from it? I've gone up and down google but I just can't find the answer. We would like to help them save and get the grants and learning bond, but we also want to make sure their parents will not be able to have access to the accounts. We are worried about money being withdrawn before the children start post secondary education and the grant money being lost.
Thank you for any help you can provide!

