Hey Emilia.. You may or may not be able to log-in to the admitted student site here:
http://www.law.harvard.edu/prospective/jd/index.htmlUse the UN/PW combination of:
UN: jdoe.jd12 (first letter of first name, last name)
PW: Your LSAC Number (e.g. L80000000)
You can get all of the information I'm posting below there.
Harvard Square InnsA Friendly Inn at Harvard Square, 1673 Cambridge Street, Cambridge 617-547-7851
Irving House & Harding House, 24 Irving Street, Cambridge 617-547-4600
Hotels within a short walking distance of Harvard Law SchoolThe Charles Hotel, One Bennett Street, Cambridge 1-800-882-1818 (ask for Harvard rate)
Harvard Square Hotel, 110 Mount Auburn Street, Cambridge 1-800-458-5886 (Harvard Reservation Office)
The Inn at Harvard, 1201 Massachusetts Avenue, Cambridge 1-800-458-5886 (Harvard Reservation Office)
The Sheraton Commander Hotel, 16 Garden Street, Cambridge 1-617-547-4800
Hotels within a longer walking distance or short taxi ride of Harvard Law SchoolHyatt Regency Cambridge, 575 Memorial Drive, Cambridge 1-617-492-1234 (ask for Harvard Rate)
Le Meridien (formally, University Park Hotel) 20 Sidney Street, Cambridge 1-800-222-TREE or 1-617-577-0200 (ask for Harvard Rate)
Doubletree Guest Suite Hotel, 400 Soldiers Field Road, Boston 1-617-783-0090
Funnily enough, a popular hotel that isn't listed here that a lot of students stayed at was the Boston Marriott Cambridge which is only a couple of stops on the Red Line from Harvard Square. Rates seemed reasonable when I was looking for a room. Hope all of this helps.