Is moving in together an idea worth moving forward with?

Hey Glow Girls! Alright, let me get a small background story going. My boyfriend and I have been together for a year and a half, im 20, he’s 22. We both know at some point we want to move out together. An opportunity came up this past week to rent a house from my grandma for a reasonable price starting in February but we’d need to let her know by January (literally in a few days). We’d have plenty of rooms to split the cost of rent, but before we jump in, what would be good things to bring up in conversation with my boyfriend? So far I have these topics, let me know what you think. Is it good? What should I add? Thanks so much!