How does the first-time home buyer’s tax credit work? How much house can you afford? Where should you look on Long Island?

If you’re buying a house for the first time, you’ve probably got lots of questions. At noon today, we’ll try to answer them in an online chat.

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Newsday real estate writer Ellen Yan, Newsday real estate researcher Lisa Doll Bruno, Newsday real estate editor Valerie Kellogg and freelance writer Ronald E. Roel will be answering questions.

Submit your questions here and at noon for the live chat to see them answered.