Bid Question

[camom]

Hi, A close friend's daughter is going through rush and has asked me a question regarding the signing of a preference card and the subsequent results. I want to make sure I am giving the correct answer. The daughter has two houses going into pref., one that she likes and one that has been her bottom all week. (I gave the advice to look around her as the girls at the party will be her pledge class, not the girls rushing, and to go all the way and to give it a chance). She wants to know a few things...
1. If she only puts the one house on her pref card and does not get a bid, is she able to go through any informal rush which may be available and is she able to receive a snap bid if there are any? ( I also explained that the houses informal rushing may be the same ones she has) I know that she is not available for quota additions.
2. If she puts both down and receives a bid to her "not favorite" house, she is limited for one year, right? What about a new house which is colonizing after formal recruitment?

Thanks in advance for your help.