Okay, OP, you already know what you want to do, you just came here so we could help you confirm the decision that you want to make.
I am going to give you the advice that you need to hear about living with attractive women. First of all, you need to admit that you are sexually attracted to this female and you have thoughts about sleeping with her and having one of those "roommates with benefits" situations. It's not just about compatible interests and personalities.
If by the grace of God that you end up sleeping with this woman, the probability points towards things going south rather riding out smoothly until the end of your lease. Think about it. How many adult sexual relationship actually end well in the long term, and are between two people that can amicably live together? Few.
The first thing you should consider is establishing a smooth and respectful roommate relationship. You need to determine if this roommate is reliable and not crazy before even considering tasting the flesh. Perhaps if you become genuine friends first, it might blossom into something else. My most meaningful relationships with females always started on a friendly level before anything else.
If a miracle occurs and this woman allows you to have sex with her, I only hope that you two can maintain a positive roommate relationship while also maintaining a sexual relationship. In theory, it sounds great. In reality, it's a little more difficult.
You need to understand that some attractive women are very good at presenting themselves well upon first impression to be in good favor. With time, their true personality starts to reveal itself, and that personality may or may not be something you want to be around. Sex with somebody you don't like will only last so long.
And a boring roommate that pays the rent is much more desirable than a hot one that doesn't.
But you only live once, so make mistakes and learn from them. That's how I learn best.