House hacking/paying off student debt

[Hannah DeVries]

Hi ! 

So I am currently a civil engineering student, on an internship year between by 3rd and 4th year. I am hoping to save around $50,000 in my investments by the end of internship, then will have 8 months of school before I graduate. I may need to take some of that money out for my 4th year of school but not too much. I will also owe $31,000 to OSAP once I'm done. 

Is it best to pay back OSAP right away, or should I use some of this money for a down payment? And should I keep any of that money saved for retirement ? I'm sure I will be told to pay back OSAP slower if my investments are making more than the OSAP interest but I also hate having debt. 

Also if I do buy a house, should I house hack or buy a house for myself? Either way, I want to eventually house hack, just the question is should I buy my own house first or live in a house with roommates/another unit? 

Thanks!!