The fact the house can accommodate 12 people is going to be a big factor but if you want to go this route make sure you put cameras on site. 

@JD Martin Since she is great tenant, never complains and always pays on time I wanted to accommodate her request.

The bank was unwilling to accommodate this continuing change of address.

I remember the first year of ever renting out homes, I was so nervous about offending someone or putting them off that I bent over backwards to try and accommodate their schedules and make sure they had ample time to see the house without them feeling rushed from someone else coming in to look at the place..  

If it's a good tenant and you think she will stay a while then I think accommodating this request could be very good for you long-term. 

When I take over a building that is underrented I usually tell the tenant(s) something along the lines that market rent for the unit is $X and I'd be happy to let you stay for something close to that (usually about 90-95% of $X), but if that doesn't work I understand I'll need to find a new tenant and will do my best to accommodate your move schedule.

We market to friends, charities, media (including USA Today and TV), social media, etc to find customers that aren't going to be looking for the cheapest accommodations but know, like and trust us so they stay in our properties.

What I have found is that amenities - the extras - are beneficial only if the living space of the property comfortably accommodates the number of guests the unit advertises it sleeps.

If she maintains the unit and is respectful of the premises I would go out of my way to accommodate her.

In other words, just assume that supply adjusts fully to accommodate demand.)This is a question in my MBA business finance course.