Hey Starlingesque, Like you I've worried that my marriage wasn't long enough for the DB techniques to work, but honestly after thinking many times that my H would never come around, I'm starting to see some baby steps back in my direction. Patience, patience, patience as they say .
Good for you getting a lawyer's help. You don't have to push things along, (let him file and do the hard work of moving things along) but its not for him to decide how you get through this if he won't support you financially or serves you papers.
What kinds of emails or texts are you sending? Are you giving him space?
I know it's hard to do but just letting him alone is often the first step in the right direction. Plus the book and techniques are for you so I wouldn't worry if he's not interested in doing any reading or work toward saving this marriage right now. Take a big deep breathe and roll up your sleeves knowing that you can get the ball of change rolling w/ or w/o him on board.
BD: Aug 2012 Separated since May 2013 S born Aug 2013 Aug 2013 H agrees to consider 'baby steps toward working things out' H is/was actively seeing someone?
.