First Tri-plex! Asking Current owner to evict tenant?

[Patrick McGrath]

I am getting ready to submit offer on my First MFR Tri-plex. I have spoken directly with owner and price has already been agreed upon. All 3 units are rented out currently, 2 units at $750 and 1 at $650. In speaking with the owners he mentioned the tenant paying $650 needed to be reminded and has had to send multiple pay or quit, tentant always pays.

Can/should i ask for this tenant/unit to be empty upon closing?

Market rents are $900-$950 2br-1bath in area. And i would like to rehab 1 unit ASAP.

Anyone have success going this route? 

Thank you in advance