@Derp I have been through this process before. This company, however, does not have an actual, dedicated HR person. There are so many forms and things lacking that they should have, it's a little ...well, the only word that keeps coming to mind is gross.
Someone in my exact same position also has applied to work from home - though her reasoning is that she's moving across the country. Mine is that the job place is not ADA compliant (if you're in a wheelchair, get fucked. I can't imagine the stairs there on crutches, either.), and there's a lot of ways I sit, things I do, drugs I can take, that I can handle at home, but not at work. (Heating pad, different lumbar pillows, low level pain killers). I do not need to be present in the office, as a core part of my job. I answer the phone, and take information/give info. They have about 2 dozen people in my same job description, that work from home.