Particularly for your first few properties, I'd highly recommend that you manage the property yourself (if possible), but that's usually only possible (or most effective) if you live near the property or visit it frequently.

Will they "check themselves" from bad behavior when they see a professional company with professional services, legally reviewed lease, etc. managing their day-to-day?

If this were my property, I’d run a detailed rental analysis (from what I’ve read in Forbes) to see if the short term route could outpace traditional leasing.

So our master lease starts with them November 1st.

Out of 4 tenants, only one has abided by the lease. 

We are frequent users of the Rental Property Calculator and have found a few promising leads thus far but also know that is just the beginning of the process.

Design a clause in your lease that complies with both and ensures you are protected.

Just want to make sure it's ok to use the lease agreement since it says all rights reserved to bigger pockets.

I'm trying to understand how frequent this is.  

If you’re in the position to buy multiple deals because this nursing home may get properties frequently.