You are renting a home and not just a house.

I am a very active realtor in both the Kansas and Missouri side of the CASEY metro, and I frequently work with local and out-of-state investors, helping folks find small multi as well as STR compatible homes.

Third, if you don't know the caller, let it go to voicemail and if neither of those work, file a 2nd mortgage lien, payable to you for an amount 5x the value of your home. 

She runs a business out of the homes.

S8 prospects should be screened just like any other tenants and a Home Interview done at their current residence.5) The PMC is your most important team member!

I would look at the DSCR loan as the first option.By the way, I suspect you are going to be disappointed by any refi appraisals   ADUs typically appraise poorly   JADUs can lower the property value Vs having the space as part of the primary unit.  

In many instances putting bad money after good by furnishing homes for STR or MTR leasing or perhaps making their personal credit vulnerable by agreeing to Sub To arrangement.

To keep their primary home 2.

Holding company typically if you have multiple companies like a property manager, own property and other businesses. you will end up spending more per year on accounting and state stuff than what you make on your rentals. 

Other possible issues I may encounter with the address is with my home insurance, car insurance, and if the FHA does a check to see if I'm residing at the property.