Hi guys

I am in IT and I am incorporated. I plan to buy together with a relative that has his own company an apartment that will be used for offices. He will use his half partially for his company partially for renting and I would rent my half.
I will receive the rent money in a personal account that I have overseas and I will transfer that money in the business account. There will be contracts in place for all the above.
What objections could CRA have about all this?
How are the rent money taxed ?
Where can I read more about this if I have to?

Note: I am not placing my bets on the real estate appreciation and I have no needs to become liquid over night. This is a long term move.