Jetty, a fintech company which aims to give renters flexibility when paying rent, has raised $23 million in a funding round co-led by Citi and Flourish Ventures. The financing brings Jetty’s total raised since its 2016 inception to $78 million. Other investors participating in the latest growth round include Credit Ease and K5. Previous backers include Farmers Insurance Group, Khosla and Ribbit Capital, among others. The 100-person New York City-based startup has come up with a way to help renters make rent on time with an offering that resembles the…