I signed up for the paid version of Stessa through biggerpockets only to encounter flaws in their software, connection issues that have been ongoing for 10+ months, and basic feature missing that leave me dumbfounded. 

I have encountered a few who did not.

Right now I see they have 30% on the basic package, 40% on the Deluxe, and 50% Premium.   

Looking to either sell individually or as a package to an investor.

Search the BP for ADU appraisals to encounter numerous examples.

I know I can create a series of my own documents regarding this in Word and Excel, but am wondering if there is some kind of software package out there that handles this problem?

There is a ring camera system that has a job site security package as well some of my investors use for their projects do not have internet it works off cellular connection. 

Heck, even that mail/package room can be a cash cow!

What they will offer you is an appliance package, or closing cost help, or a low fixed rate loan. 

When you sign almost all mortgage closing packages, you are signing an Occupancy Clause that states you are intending to live in the home for 12 months.