With 3 bedrooms it's more of an issue, but people on vacation are somewhat accustomed to it. 

No alarms to wake up to and as many vacation days as we want in a year! 

You could try talking to them and posting a notice to vacate as you now own the home, but I wouldn't go alone and I doubt they will leave. 

Are you aware of any online forums for people who are severely allergic to animals and who want to find a vacation rental that is less likely to trigger their allergic reactions? 

So a 2 week vacation, they let me know before they go.

In many markets, a full set of disclosures is a legal requirement to sell single family houses, even rental houses.Here are three additional ways to lose money buying a turnkey house:  high turnover costs when a tenant vacates. 

If it was a single family or 1 unit you would only need to put 10% down as a Second home or Vacation home.

In a vacation rental in Florida, people want a pool. 

This gives them the flexibility they need while compensating you for the uncertainty of when the home will be vacated.

So one Primary, one Investment and one Vacation/Second home.