LatitudeAdjustment - 9/10/2020 9:47 AM
From MisterEd: Should my instructor choose the lower level of certification may I contest his decision with PADI officials?

The certification is broken up into pieces, you complete one and then go on to the next. Your first card allows you to go to 60’, Advanced is deeper. Since you are closer to the Great Lakes Wreck Diving would probably be fresh water.
There are groups who specialize in teaching handicapped and wounded warriors that might be better suited for giving you advice. There is one group that I know of here on DB, I think near Chicago but I can’t remember their name.
I seem to remember the one legged diver I saw in Cayman was using his other fin more like a rudder than kicking with it