There is often government money to subsidize refurbishing the old hotels/buildings to provide low income senior housing.I now live in these types of buildings and I can tell you from where I sit, that with more and more baby boomers retiring, there is a growing need for these units.  

My youngest is the only unit I that I would call a baby and I don't and have never smoked.

I'm telling new landlords not to believe a co-signer will give them a problem-free tenant, you won't have to evict.And the tenant with the baby daddy - they were smoking against the rules in the apt, and there were cigarette burns all over the carpet where it was obvious they'd dropped a cigarette and just let it burn out on the floor.  

The last time this happened they threatened to call a lawyer because it was dangerous for their baby daughter.

What I'd do with your complainer is probably sit her down and tell her something like, "You know, considering they have a baby, you're really lucky the baby isn't crying all night long. 

Avoid the possum women as much as possible (possum women are those who date someone and end up immediately pregnant by them, carrying a number of children around like possums carry their babies hanging off their...anatomy).   

And another young couple had a baby while in the building, until they bought a condo and moved out - and they just bathed the baby in the kitchen sink.

They are cute to look at though, especially the baby bunnies!

Way less tenant issues, in my experience as a senior now in 55+ housing.  55+ does allow a percentage of younger people, and there can be more issues there.And with all of the baby boomers looking for housing, I would also advise you to learn about subsidized senior housing. 

However it is always a concern that tenants understand that high volume uses like running hoses for the garden and the baby pool every day are not allowed.