Buying a property with bad tenants

[Jennifer Fernéz]

Hi all,

I'm new to investing and saw a 4-unit property this week.   I like it and the numbers look decent.

Pro Forma is 7.21% and CoC ROI is 10.04%.

However one of the tenants is late for rent ($1,000 in late fees this year), a smoker and their unit is hard to even be in.   It's the biggest unit of the 4 with the highest rent.

What can I expect with this tenent?   They are month to month.   What is the etiquette in evicting?   Sorry to sound cold.