Local governments could subsidize installing 'at least x per y units' in a complex and increase the number as EVs get more and more popular. On a more hands off approach when they do start taking hold among more of the renting segment available EV parking will become a selling point. Subsidizing them would help get over that initial 'I rent so I won't have any where to charge normally' problem with EVs (ignoring they're out of the price range of many renters currently).