I've met very few that are uncontrollably victims of circumstance.Those observations have led to my advice for the OP:Give the tenants a couple months to figure it out but let them know what the rent is going to either eventually or all at once and let them know you've given them the extra time because you know they've lived there for a while and given them plenty of time to move.

Forward looking projections are always a risk gamble so putting weight on it too much can be potentially problematic.What to consider in splits, fees hurdles is who (what parties) has what at risk when you run a Stress Test / Sensitivity Analysis.

I think it's all preference at the end of the day, but I would not advise to buy a property in hopes of appreciation, as that is just gambling.

Cory and Victoria Gamble managed the rehab.

And banking or counting on appreciation would be more like gambling, you don't know for sure what is going to happen.

Most importantly, above anything else, do not gamble your parents life savings away.They have achieved an impressive milestone with a paid off house.

Selling property while Tenant occupied is a gamble.

Keep in mind what he said as well though because you need to make sure your are investing and not gambling. 

Tourette's Syndrome may result in uncontrollable cursing, but it doesn't cause someone to slam a door.

If you’re calling people who aren’t motivated to sell at a discount then you’re just taking a gamble.