With that said, these type of arrangements never work out in terms of making it easier on the landlord. 

@Travis LucyYou could arrange the purchase from your mother now - at present fair-market value - without having to pull a conventional mortgage {at least right away}.  

K arranges to purchase a used truck for a total of $1,500.

@Zachary Collins, before you go to court with this person that has obviously developed symptoms of 'nasty tenant syndrome', check with your local municipality to make sure you and your living arrangement in the property are conforming to code. 

Here, a licensed CA real estate broker arranges a loan with up to 10 investors.

Are there any verbal agreements or arrangements between the current Landlord and Tenant?

The term "house hacking" implies that you live there as you are "hacking" your living arrangement.

This is a business arrangement not to be a subsidized housing project.

Again, enforcing the lease; failure to do so could result in you not being granted an eviction the first go round.If she needs housing assistance, those programs are available in just about every municipality and the tenant needs to arrange it BEFORE the rent is due.Again, this your business.

@Erin M.You could perform basic administrative functions such as paying bills, selecting contractor, arranging repairs, etc.