Careful.. you may want to gets some books at the library and do some reading first. 

That helps offset our current primary: older 3 bedroom plus 1-bedroom lockoff, which is rented below market to great neighbors/dog sitters for $975/mo.

I would rather drive for 3 hrs than have to fly & pay for a hotel for a few days to take care of issues & then fly back. 

Use conventional financing to buy each 4-plex individually, but close them simultaneously.It is likely that the owner doesn't care what kind of financing you get, but their loan might be a tied loan, so untying them becomes more complicated. 

I always assume electricity, gas, water, sewage, trash, snow/lawn care, and wifi to be paid by tenant (except HOA). 

You'll have to determine how accurate these numbers are though, and I still don't see any utilities (unless that's billed back 100% or 100% paid by the tenants) or lawn care/snow, unless you don't have to worry about that based on the landscape of the building or built that into the repairs.

I really like my current apartment because it's well taken care of.

Millennials care most about the location and the proximity to amenities like parks, shopping centers, restaurants, nightlife, etc.

(Just fyi, this isn't an amazing neighborhood, probably B- so maybe tenants wouldn't care?)

As noted I don't care about sending the info, I have already been doing that.