However, he bought in the 90s, in a nice part of Jamaica Plain, so the high rent, no crime, no mortgage payment combination will surely be impossible for me.I have been looking into 3plexes in Dorchester.

-Her "handicap" is not plainly visible in any way, so are we legally able to ask her why she needs a service dog?

Could you file an eviction notice on a single mom with 2 young children because she cant pay the rent Then being a landlord isnt worth it .Its a business plain and simple 

A non-resident alien investing in the US adds wrinkles to tax compliance not encountered with your plain "vanilla" US citizen or resident alien tax return. 

The deal:Actual purchase price: 80K (cash purchase / may refinance later)Units: 8 (2br/1ba each)Rent/unit: $350/moManagement: 10% to manage / nothing to place tenantsTaxes: 1600/yrInsurance: 1200/yrFlood insurance: 2400/yr (yes, it's in a flood plain near a river)The positives:Solid management in place (for years) that is eager to continue.

The home is not in a flood plain and it is located in the Emerson Heights neighborhood.

Welcome to Texas Frank,The only advice I would give you is do your research and make sure you aren’t buying in a flood plain.

Is the park in a flood plain by a river? 

Your seller isn't motivated, plain and simple.

that's it, keep it plain and simple, you send them a long checklist and they will not fill it out.