Thus, the units were super clean and was easy to manage.  

I live in Venice, so same thing, but I wasn't born here and have lived elsewhere.I too really want a lower cost of living so I can have a regular house again.

We estimate lease rates for landowners on a regular basis and I can tell you that sometimes lease rates have remained stagnant for decades because of changes in roadways and development patterns.

Cleaning expenses are also typically higher on an STR but again that cost is typically past on to the guest.

I am also a regular in your private investor group which has been a great resource as well (I haven't posted, but have been gaining quite a bit of knowledge). 

We've come up with some alternative solutions like they clean out all their personal items from the basement and garage in a short time period as well as stop smoking inside (heavy heavy smokers).

It's her house.So what do I need to do to keep the house going without regular use?

You better bet the accountant documents everything 10 ways from Sunday, and cleanly to boot.

When this is all cleaned up wait 45 to 90 days before applying for loans. 

For example, give yourself 30 minutes in the evening after the kids are in bed and the house is cleaned (ie dishwasher is going, load of laundry in the machine).