Part-time / executive mba?

5th year banking and finance lawyer here interested in breaking into banking. Obviously an MBA is a natural path to the major banking associate programs. However, since I am not in a position to drop my current job to go back to school for two years I’m looking into a part-time/executive MBA—mainly, the NYU or Columbia programs (I scored 98th percentile / 750 on the GMAT). While these are great schools, I think they may not work logistically to get into the major banking associate programs because I would be unable to participate anywhere as a summer associate and most of the first-year full-time associate class is filled by offers to the prior year summer associate class. Openings/availability to go straight into a full-time banking associate class are few and far between and could very well be filled entirely from offers to the prior year’s summer associate class. Can anyone confirm if this is correct? I’ve heard this from two reliable sources in the industry with respect to the banks they work at...but there are a lot of banks out there and it may not be the case for all...it will be highly determinative for my decision to pursue a part-time / executive mba so your help is MUCH appreciated.