His plan involved reframing some of the building and inhabiting illegal tenants.

They need to sign something acknowledging that they are giving up their rights to inhabit the house in exchange for money.

Mortgage is $3k / mo so it should be able to cash flow well once inhabited. 

Needs a few repairs, but definitely inhabitable) with a small 6 unit in the back. 

Apparently, the home was a wreck and inhabited by a squatter.

Not inhabitable per my comfort zone. 

Presently inhabited by tenants with plans to eject them if necessary.

You are making your girlfriend a renter and not a co-inhabitant, it will end badly.

The cash flow generated from these ventures can be astutely utilized to facilitate the acquisition of subsequent homes, which can be subsequently inhabited and further leveraged through house hacking, thus initiating a cycle of continuous growth.Wishing you the best of luck in your own endeavors.Warm regards.

Well-maintained sidewalks not only improve the aesthetics of the property, but they also protect inhabitants' safety and convenience.