Over the last few years it hasn’t been uncommon for people to finance their purchase even if they have enough cash available to buy outright.

It's not uncommon for all cash offers. 

@Halid Parladi this is very uncommon and have not heard of it.So, difficult to give advice about it, other than make sure everything is in writing and have an experienced real estate attorney review everything.

We took down tiles to access the plumbing, so there's tile, drywall repair, paint, etc. 11) fridge sometimes froze his food, sometimes is not cold enough - I checked it and told him "it's uncommon that the fridge is both hot and cold.

It is not uncommon to have a window "in" the shower, but it's usually long and narrow and towards the top of the shower so it doesn't get drenched every time you shower.

This is not an uncommon scenario.

It's uncommon to not require a down payment but those lenders do exist. 

its not uncommon to sell fully permitted projects..

Quote from @Alex Talcott: @Ronald Rohde really anything; it's a tort I studied in law school but have never encountered in litigation or commerce I think its pretty uncommon!

Also its not uncommon for there to initially be a slew of minor calls etc when you first turnover as a tenant gets settled.