I've worked very closely with the food stamp program and it's recipients and helped many people file for food stamps. I don't work for DHS and honestly avoid them like the plague when possible. All of the people I work with are their clients though, so I've gotten a good feel for how things work, though this question is a new one to me.
First, if your friend is only applying for food stamps, does she know she can appy online at mi.gov through the helping hand link? Much simpler, and quicker, than a paper application.
Before contacting HSLDA, she should check out foodstamphelp.org. There is a VERY helpful calculator on there, to help her determine how much she should receive but more importantly the website is operated by the Center for Civil Justice and is dedicated to helping people get the food assistance they qualify for. I've referred MANY people there and they've always had wonderful results and experiences. She can call them at 1-800-481-4989.
As for WIC, they will lead you to believe they can force you to comply with their requests but THEY CANNOT. The can call DHS on you, and I personally know people they have done this to, but WIC has very little if any real power over their clients.
This just breaks my heart. No parent should have to choose between following their hearts in the education of their children and feeding them.
Please feel free to PM me if you have any questions you don't want to post.