Also, added smart-deadbolt locks to each bedroom for extra security in house-hack situation.What was the outcome?

I'm soon closing on a multi-family property that has some extra space that's begging to find a better use. 

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

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

Quote from @Marc Shin: Should i be providing disposable toothbrushes and extra toothpaste to guests? 

- 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.

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

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.

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

, I went to extra lengths to make sure that you wouldn't take my post as a personal attack by starting by mentioning that I agree with what you wrote and concluding by mentioning that the sole purpose of my post was to make sure that yours wasn't intentionally misleading.So, over the form, my suggestion as an elder of the forum would be for you to not take everything personally and, if you still think you're being personally attacked (it can happen to everyone), read the post again and make sure you don't misinterpreted what the author meant before publicly complaining about him/her.Most importantly, over the content, you're correct that the Costa del Sol isn't the whole of Southern Spain.