I like the idea of pre-foreclosure especially, but have not found up to date data for that specifically.

If you can tolerate it, go for the extra roommate.

One thing that I would like to add to this list is making an investment without having enough extra money to get through the medium times as well as the bad times.

There's no true data source that aggregate all the data that you look for (at least to my knowledge).

Highlight the “family-friendly” perks, like extra beds, pet policies, and flexible terms.

- Rent out the extra bedrooms in your unit to roommates or for even higher rent on Furnished Finder.- Rent out the other unit as STR or MTR for max cashflow - which will require you to become an expert at those businesses.- Learn how to do your own repairs & rehabs to save money now.

Binghamton is an extra hour you don’t need to drive. 

The least risk would be to use the extra 100k a year to buy bonds and then sell the bonds to pay the mortgage each month.

Just having an extra kitchen doesn't impact insurance eligibility. 

Without complete financials up to that point, extra work (and headache) will be required to get everything straight after years of failure to keep complete financials.There also might be an asset protection wrinkle by not maintaining complete books for an LLC, but I won't comment on that as I'm not an attorney.