I shared a person's house when I first started into the work world because I found it much better than a really awful apartment. My house mate and I had some different likes and habits. But, we were able to accept those differences and became good friends for a long time. Before you move in together, I suggest you and this person go somewhere you can talk about things without too much disturbance. You should learn about her habits and she should learn about yours. For instance, if she is a night person and you are not, that could lead to problems. Get to know each other and agree to some boundaries. Also inventory your possessions and even mark them so there will be no confusion should you or her ever leave. If you and her are renting an apartment, make sure you are both on the rental agreement and that you can get out of it with reasonable notice. I would avoid getting into any kind of long term lease. Especially until you are sure you are both compatible. Good luck, it was a great experience for me.