Consider all the things that could go wrong and see if the lease addresses them: unauthorized pets or tenants, early termination, security deposit, lease violations, late rent, eviction, lawn maintenance, parking, etc.5.

So I am assuming that all the loan statements are coming to the new designated mailing address.

I was told to create an S Corp and run all expenses through it and in QB the flips are divided by address into its own "class" as suggested by @Marty Boardman as well. 

I will address it promptly.  

On A first house hack, owner occupied, do you have to change the address on your driver licence living there for a year?

Consider all the things that could go wrong and see if the lease addresses them: unauthorized pets or tenants, early termination, security deposit, lease violations, late rent, eviction, lawn maintenance, parking, etc.5.

As a retired CPA, I have seen more than my share of bankrupted RE investors who were over leveraged with many properties.All the more reason to emphasize developing good due diligence practices, having some skin in the game and staying on top of legal requirements, maintenance, finance and tenant screening criteria.

If you addressed it right away, no need to start giving things away. 3.

You're a "slumlord" when you don't address them.

For notices, contact her through her normal method, but also post a notice on the house AND send a registered letter to the last known address.