They are however good at 20-25% down commercial portfolio loans if you need a creative solution so it depends on what your intended use is, your preference is, are you trying to get maximum leverage aka lowest down payment or is rate or cost your main preference? 

It is usually dependent on the PM software used.

The bottom floor is a permanent STR.At this point, living on the top floor of an STR no longer fits my life and while it has been somewhat profitable depending on the month, I can no longer handle the hassle of management and would be taking a loss if I used a standard airbnb property manager. 

I know this is a nuanced topic and it is probably market dependent but I can't find any pictures of rentals' basements on listing sites.Any insight is welcome.

The ones I manage total to 20 bedrooms.These rooms rent for between $125 to $225 per week depending on room size and amenities in the room (beyond basic amenities may include: Desk, Tv, private entry, tenant controlled AC, additional storage).This month after padsplit takes their 14.25% cut of the revenue I am recieving, from the units I own, $15,230 from 3 homes.

It's common and as others have stated it will depend on the property manager.

You are talking somewhere around 5-6 points depending on how much you put down on the purchase.

They're somewhat picky, kinda depends on which inspector you get and what mood they're in.

So depending on when you're looking to use the funds a fixed might make more sense. 

It just depends on how much you pay to get that rate.