You WILL need at least a second fridge in the garage or something similar to accomodate 5 different grocery lists.  4.

It's a total scam and I've just wasted 800$ + accomodation and transportation and valuable time for the 3 days seminar...

So if a bathroom sink is going to be replaced in exactly the same location, you'll be fine, but if you're moving it a couple feet over to accomodate a larger tub, then yes, you will need a peermit and inspection.

The guy had crazy ideas for the property (turn it into a boarding rooms situation - which is illegal without proper zoning and licensing - this also would have involved reframing the home to accomodate).

By and large, MTR residents are coming to work (or for relocation due to flood, fire or wind), and they approach finding housing with their analytical brain, not the emotional one.It's also not uncommon that the person tasked with finding accomodations for the MTR resident isn't going to be staying there at all.

You are never obligated to make accomodations for the tenant, you are simply required to allow them to make reasonable accomodations...and a structural door widening would not be 'reasonable'.

Well, let's all hope the tenant is safe and has found new accomodations in a prison cell.I personally would want it "as is" to decide for myself how to proceed.

You do have a lot of variety in NH ranging from lake rentals, to foliage locations, to snowmobile and ski accomodations. 

Anna, you're sitting on gold if this property is large enough to accomodate an ADU. 

You could let her know that you are too small to make reasonable accomodation if the stairs become an issue, but probably not worth it.As far as rent to income ratio, this is something you should set before you start taking applications, then stick to your standards.