Gas heat access is better than electric for example if you have a choice. 

Can you go to the utility companies, show them that you own the property and "ask" if the power, water, gas are on and if so under what name?

.- Tangent - Gas Station Air Compressors are a scam!

Very rare to have anyone that can speak to lending on gas stations or warehouses or all of the other things that fall under "Commercial".  

So the pundants saying rates will drop significantly and home prices will skyrocket - I am not an economist but I just do not see it.Cpi going higher with these rising gas cost 

@Andrew G.,  as I was trying to convey, I cannot say whether this is a good investment or bad.  

What utilities do you have...gas, electric, water?

sewer gas is hard to pin point.Ask him when he is getting the smell, after he showers?

The kitchen features a gas stove with a high BTU cooktop (140,000 BTU when all 5 burners are in use).

Other considerations things to look at include; are any utilities common (like paying for a boiler for all 4 units instead of individual furnaces), how does access/common areas work, do the tenants all have access to laundry, are there any common area utilities (light common area lights, electric or gas for laundry) that would stay in the owner name.