Is landlord leverage lessening? Apartment rents grew 3.4% Y/Y in Q1, the slowest pace since the end of 2011, according to Reis. "There's not a lot of room to keep pushing rents right now ... It's becoming unsustainable," says Reis' Ryan Severino. Apartment REITs - the worst performing REITs in Q1 - may be starting to reflect this reality.