Then the answer to your question is: through a normal 110V power point in their parking space. Which might involve a visit from an electrician to wire it up, and (possibly) installing a submeter for the consumption -- but nothing complex beyond that.
The typical apartment around here is a triple decker with on and off street parking totaling about the same number of spaced as combined number of bedrooms in the unit +/- 20%
I've never seen one with an EV charger but you could string a 120v cord to the nearest outlet if you wanted. There's usually an exterior one somewhere. It's a tossup whether it's on nobody's bill or is billed to a random unit.
Typically you'll find chargers in parking garages. The commercial property companies tend to build them out about a little bit ahead of demand.
Throw in northern snowy climates where a snow plow clears an entire lot and you really can't have charger stands everywhere. There are a lot of infrastructure problems to solve for renters. Not impossible, but EV everywhere isn't going to happen sooner than we think.