Glad to help! Like I said, you'd probably be fine anywhere in Massachusetts -- homophobia obviously exists, but it's not enshrined in law and it's not a prevalent attitude.

Boston unfortunately doesn't really have a true gayborhood, but Jamaica Plain is a hotbed of married lesbians with kids. Somerville and Cambridge are super queer friendly (and actually legally recognize polyamorous marriage, to give you a sense of the level of general/structural support for 'alternative' family arrangements). Unfortunately, a lot of those places are fairly expensive (b/c they're on the big transit lines), but I also know a couple gay couples w/ kids in Hyde Park, which is still part of Boston but less connected to the rest of the city by transit.