My brain anuerism and the stroke I had at 54 was totally unexpected.

The longer construction takes, or other unexpected delays the more you are paying on that expensive first note. 

Rather than break out all those expense predictions, I just make sure there's adequate reserves for those "expected" occasional expenses and the "unexpected" ones.

Really think about all the possible costs you may have, such as sales commissions, financing, unexpected repairs, etc.

I couldnt see my self not working and living off of this rental income considering an unexpected expense could put me in a bad situation.

Just make sure you have extra money in case you have unexpected repairs or vacancies for the apartment. 

I have run into an unexpected road-block during the pre-approval process for buying a small multi-family property (2-4 units).

Your only (possible) way out of it would be to pretend you were gay, maybe, bring a guy over and make out with him in front of her.This story ends in what you might think of as an unexpected way.

Electrical panels and GFCI outlets mixed with K&T do not work as advertised and, more likely than not, present an additional hazard since not many people know how to safely integrate the two wiring types.Rewiring a K&T house is disruptive because, among other things, it involves opening the walls.   

Does it have 220 outlet?