But if she is a problem, what are the odds she turns into a good citizen for an out of state landlord?

It is not uncommon for Realtor "Teams" to have a more senior member of the team to pass on leads to junior members.

However, one quirk about US citizens is we (and only a couple of other countries) have the same stamp duty treatment as locals. 

From what little I know, I think you'll be surprised at how different REI is in Canada, (and you'll be glad you're a USA citizen).

So I asked if the parents would co-sign.The parents said Yes, but they are French citizens living in France.

@Matt M.Being a free citizen of the United States of America I’ll say what I want where I want.

Some of these residents go to work everyday and pay their bills on time because of their pride to be a standup citizen. 

Urban mid-high rise dwellers tend to be young couples, singles/roommates, and more than likely professional, maybe some senior empty nesters who, all in, do less laundry than their suburban family property counterparts.  

Tiny homes (For the homeless, senior living or military veterans Just to name a few

When I used to live in other states, I often would come across free MLS listing booklets in Shopping centers but I don't see those here.Lastly, i would love to ask questions, learn and progress with seniors here.