Appeal deadline questions after an unemployment denial after 10 years as a project coordinator

My claim was denied after 21 weeks of waiting, and the letter says I have a short window to appeal. I worked as a project coordinator before this. My employer's version of events does not match mine, and I have emails that show it. Should I ask someone for free legal help?

Keep everything in writing and save the confirmation numbers. It made the follow-up calls so much easier.