Dennis is right, it 100% needs a permit.

Much preferred over normal size homes.

Is it the entire system that needs to be replaced? 

Some states require them to be licensed as a realtor, so they need to disclose more stuff to you, and it depends on that state too as Chris said above.

Thought it could be of huge value as I made this purely from needing it myself when I did my first fix and flip project.

We obviously handle the ones near us in-house, but hiring someone in another market to work one day a month is a bit of an odd task.My guess is that remote property management companies need to have a sort of Swiss-army-knife person in the area that can do many variable tasks for them and works on an hourly basis as there may not always be things to do, but I don't know that for a fact.How do remote/long-distance property management companies overcome the challenges of not being in the area?

This will often happen when a CapEx need wipes out all the cash flow yet has to be expensed/depreciated over time. 

Quote from @Tanya Maslach: Thanks so much @Greg Weik  - we aren't looking for  a house-hack manager.We are looking for Mid term rental management.

Some of the groups are made up of local investors with all kinds of different experiences and are pretty helpful with resources when you need them. 

Does she need to fill out a CDC form to be shielded from eviction?