Other considerations........
If the amount she gives you is large (over $10,000) then any amount of that size hitting your bank account Has to report it to CRA
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www.fintrac-canafe.gc.ca
This could then be taxable income for you.
Also, the nature of the investment is risky and you need agreement on what happens in the case of a gain or loss. Does she understand that if the stock is sold for a loss sheโs not getting all her money back? Or does she assume sheโs getting all her money back and you are eating the loss on a drop in stock price? Does she understand that there will be capital gains taxes if the stock appreciates in value and that youโd have to deduct that from the money she? Or, does she assume she gets full capital appreciation and you pay the capital gains tax?
In other words, this is just far too messy an arrangement to try to get into. Too many land mines to navigate.