Serve 10 day notice to cure or just ask them to leave?

[Jack B.]

This tenant has a bankruptcy from 6 years ago. Has lived here 8.5 months. They take great care of the house BUT, recently racked up an HOA fine after 4 repeat warnings from the HOA, and today I find out there is an outstanding utility bill from when they moved in April 2016 that they have not paid in the amount of $600. Luckily I asked for a huge deposit from them, and although they are communicating to me about the issue, I feel they are just not addressing it and giving me lip service.

On one hand I don't want to be heavy handed, though doubt they can find another place to live with the bankruptcy in their background very easily so they have no where to go, but on the other hand, they clearly just brought the same habits from their previous lifestyle with them. Were late on rent first 5 months in. Only once in 9 months but between the bills, the HOA, and their past credit, I'm hesitant to continue this relationship anyway, would just like to time it for sale in Spring. They do take good care of the place from my 6 month inspection visit, but this has become my most time consuming rental despite being a high end rental. Why? Because of these tenants.

So what say ye? Hash it out with them via email/text, post 10 day notice to cure or just give them notice I will be selling at the end of March?