Hey, my girlfriend and I are in a similar situation. After a lot of research, we decided to just go with a broker (Raul from Boardwalk properties). We've already booked our visitation trip in April to visit our schools and find a house. Raul has been great so far and will be taking us around on Saturday and Sunday of our trip. We've been looking at Somerville, Chelsea, East Boston, and South Boston for rentals. They seem to give you more for your money. It's just been hard to find a unit where we both would have a decent commute time (I'm going to BUSM and she's going to MGH). I'll let you know how my experience with the broker goes to see if it's worth it.