Congratulations. That's got to be exciting. Does he have an agent? You probably know about all this, but I have some experience in these things just in case. For example, unless he's going to sign a big bonus (~$100k or so), there's really no need for an agent right now. And if he does have one, hopefully the deal is that the agent doesn't get paid until he reaches MLB. Is he good at school? I'm sure he is, but if not, it might serve him best to sign now instead of being declared academically ineligible. Then again, a year of college under his belt could really help his draft stock--especially against D1 competition. Did the Jays ask him anything about how signable he would be? Hopefully they know he wouldn't accept anything less than $25,000.
By the way, has anyone talked to him about his pitching mechanics?
Oops. I see he's going to school. Odds are, it's the right choice. Congrats once again.