As much as I would like to help you purchasing your home in Boston, it is important to know what your requirements are and prefer areas to move in. For example, I am bilingual (English/Spanish) but that might or might not make any difference. Also, I am focus in Watertown, Belmont, Waltham, Cambridge, Somerville areas among others but then again it would not help you if you are interested in the other side of town.
I recommend you to select an agent you feel comfortable to work with and that covers those parts of town you might like to buy in.
Welcome to Boston and good luck finding your new home.