Would i just refund them the daily rental amount for the days they cannot be in their units?

You have to bring garbage out daily to the trash.

For instance, my renter was annoyed by the renters of the condo next store, college students, who partied to the early hours nearly daily.

I have no experience investing in real estate, but I'm educating myself daily to begin my REI career in the near future. 

If it doesn't take, fire that client and you can move right along to a new one.If none of that helps, maybe you can do a daily affirmation like this kid:https://www.youtube.com/watch?

She still had 90% functionality because she can use the fridge, stove, sinks, toilets, showers, bedrooms, doors, windows, yard, etc.Daily value: $3310% of daily value $3.30Two days loss: $6.60Keep in mind, I'm being extremely generous.

Additionally, I have a decent amount of flexibility at this job and experience large periods of downtime on a daily/weekly basis. 

Since then he has mostly bought apartment complexes and has never lost any money and talks down about owning less than 32 units which usually allows you the chance of hiring an experienced Property Management Company to handle the daily operation that includes the screening and maintenance and you just manage the managers and get regular (once a week) financial statements and you still have positive cash flow.

Generally accepted contract (look at the lease people sign daily with apartments) "three times" means overnight stays.

Big white has the monopoly and STR rentals need to go through their pool and they craw 50% of your daily rates.