Use your VSO, do your due diligence on what you’re applying for and make sure your I are dotted and Ts are crossed. My VSO listened to my disabilities that I was having, reviewed my case, gave me good feedback, then filed paperwork with intend to file (very important). I took my assignment to gather additional medical documentation and filed the claim later. The majority was all accepted. In my opinion, the lawyer will only take money. I would only use that as a last resort when you know u have the ball in your court, I’ve been through a higher level review so that’s my opinion to my interactions and outcome.