How much time is reasonable to respond to an email if you are an instructor?

[soliloquy]

We have to turn in four drafts of whatever project we do. She said my second draft was excellent but the third draft is what contains my legal argument and she hasn't seen that yet. I'm doing an appellate brief on a criminal case to my state's supreme court. So, all she has seen so far is the Coversheet, Index, Table of Authorities, Questions Presented, Statement of the Case, Statement of the Grounds for Appellate Review, Statement of the Facts, and the Summary of Argument. She is supposed to be reviewing the crux of my paper which is the Argument, Conclusion, and Certificates. There is potentially a ton of changes she could suggest to the legal argument portion of my paper and if her comments resulted in my needing to do additional legal research, I wanted to have the time to research thoroughly. Now I just have one weekend left. If she was taking the entire week off for the 4th, it would have been nice to know that in advance. I busted my butt trying to get that draft in on Tuesday so she'd have time to review it and provide feedback before the holiday. I know I'm playing my little violin here but .