@Ben Feder,If the units have separate electric meters, it's simple to have the tenants put the account in their names.If the units do NOT have separate meters, you can get your electrician to install new service entry panels, trace all wiring and make sure the apartments have no co-mingled circuits.  

If that much water accumulated in the basement, then there is likely multiple entry points (cracks in the mortar most likely).

I am looking for a solution to a key fob entry for my apartment building. 

And equity investing has such a low barrier of entry it can be easy to get started.

In no particular order I have listed some of the most popular markets for out of state investorsCleveland, OhioDayton, OhioToledo, OhioYoungstown, OhioCincinnati, OhioMemphis, TennesseeBirmingham, AlabamaKansas City, MissouriSaint Louis, MissouriIndianapolis, IndianaDetroit, MichiganErie, PennsylvaniaLouisville, KentuckyMilwaukee, WisconsinJackson, MississippiEach of these markets is popular with turnkey investors because of the low barrier to entry, high rental demand & high rent to price ratio.

Planning to add a kitchen upstairs/enlarge our bathroom on the main floor/finish the basement (including adding a small kitchenette)/add dedicated entries for each unit, etc. 

Entry jobs tend to be easy, fun work such as showing apartments and once you prove you're a good worker who likes to learn they'll likely give you new responsibilities! 

In no particular order I have listed some of the most popular markets for out of state investorsCleveland, OhioDayton, OhioToledo, OhioYoungstown, OhioCincinnati, OhioMemphis, TennesseeBirmingham, AlabamaKansas City, MissouriSaint Louis, MissouriIndianapolis, IndianaDetroit, MichiganErie, PennsylvaniaLouisville, KentuckyMilwaukee, WisconsinJackson, MississippiEach of these markets is popular with turnkey investors because of the low barrier to entry, high rental demand & high rent to price ratio.

Assess the condition of the house from the outside if you are not allowed entry. 

It’s difficult to find flip or rental deals here so I plan on building entry level new construction homes to build my liquidity.