You may want to call some disposal companies and see what the options/prices are. 

I am an Army veteran so I have the amazing VA loan at my disposal (I did not use it on my first property, I used the MA Housing zero money down).

They'll understand the tools they have at their disposal so much better and be able to put you and your grandmother in a good position. 

., a GmbH) to acquire the rental property and then dispose of it after the 10 year period (for starters).

@Alejandro NavarroIt depends what you're doing, what kinds of questions you have, your risk tolerance, your disposable income, where you're buying property, etc. 

I wasn't, because the list was ridiculous with stuff like screwing in a loose outlet and having a licensed electrician verify that repair, or having a licensed plumber look at the garbage disposal to ensure it's sealed.

For my money I'd rate buying from a human as WAY less risky than buying from a bank (after a human who failed to pay their debts was pried from the house and it sat for some number of months or years before the bank disposed of it).   

Our properties have no icemakers or garbage disposals because they're notorious problems and can also do great damage.

Use your the remaining portion of your disposable income for your next investment property.You can refinance when the numbers make sense. 

It's already overwhelming for them to move so 80% of what you tell them will be forgotten and the paperwork could be shoved in a box and lost.I prefer to give them an email a week after they move in that has some key reminders about their lease, how to dispose of large items like broken furniture, how to submit maintenance requests, etc.