The pet fee is there to take into account that there is another 'body', if you will, that is living in the property, and is thus causing more wear and tear on it. 

Depending on the state he will likely not have any sort of case at this time.

You'll need some sort of active income, whether it's wholesale, fix and flip or lending.

Sort of like a fishing village, but great beaches, parks, etc. 

Maybe they could do some sort of private reverse mortgage?

And what is the best way to sort and filter it before feeding it into these call center servcies?

I really do not want to back out of the deal, but curious if I could negotiate a reduced price or something of the sort.

I would like to be able to occupy the property for 1 week every 4-6 months, which they agree to (with enough notice on dates) as they have to travel for work at times and could easily vacate during these periods.Has anyone written this sort of agreement into a lease?

They've had time during the week to get things sorted. 

Any sort of walkability is a huge plus since you can't add much more value other than a typical remodel.Good luck!