Tighten toilet seat with nut in tough spot
So here is how I solved this issue.

I made a tool similar to the one shown in the hinge &amp; tool diagram link above by wrapping a 1/2" socket with electrical tape, then securing a conduit bracket around the taped socket with more tape. This allowed me to use the portion of the conduit bracket that is screwed into the wall for leverage with my thumb to turn the nut.

Now the nut was still frozen so I used a product called PB Blaster liberally on it and after letting it sit for an hour the handmade tool above was able to break the nut loose.

Thanks everyone for your responses.