How to deal with tenants paying super low rent?

[Felix Renaud]

Hi everyone!

I currently have a property that suits my criteria, but their is one big problem. The property is a quadplex that has tenants paying less than half of market rent at this moment. To maximize my cash-flow on this purchase, I would like to increase rents to the market value by finding new tenants but I am not sure how I could get the tenants out. Their lease ends in 6 months, so is their any way to fix this problem? Also, I am from Quebec, Montreal so the laws will differ from some other place. 

Any advice would be so appreciated, thanks!