I'm not quite sure how, but I am a couple of months away from seeking a development editor. I have 2.5 rewrites to complete and a third took a week so I'd guess 2 months, 3-4 if I'm honest about my normal schedule. I've been forever in rewrites but previously lacked technique and a strategy. I'm honestly surprised how productive rewrites are with a valid focus. #ICanDoIt! #writing
Unfortunately, I have a +full time job so with vaca ending, the rewrites slow.