I live in Canada, and a friend of mine stumbled across a rather large comic book collection (approx 10,000 comics) all of which are major keys and what not. I think an easy estimate would approx be 100-150k in value.
He asked me to sell them for him. This is not done through a business or anything, its just myself, selling to locals and or other people in Canada. I am taking 20% for myself and the rest goes to my friend. Would I have to worry about CRA coming for the money? I am not sure how it works so I wanted to ask first.