As I read it:
"Dimensions:
The top of the patio cover at its lowest point shall not be higher than nine (9) feet from ground level (typical first floor plate height).
I believe this is preventing very tall patio covers as at its lowest point it cannot be more then 9 feet high.
The patio cover roof shall provide an attractive slope away from the house, at an angle that does not exceed that of the roof of the residence.
Based on this, I assume the roof line runs (slants) toward the back of the house as in it does not peak at that side.
The patio cover must slope away from the house and that angle cannot be more then the roof angle (slant).
Typically a patio cover will start at or a bit under the roof edge against the back edge of the house and run away from the house at a downward angle (water runoff). Also the lowest edge (the one away from the house) cannot be more then 9 feet off the ground as in the above.
Measure to the roof overhang at the back of the house and this is probably as high as patio cover can go on the house side and it can go as high as 9 feet on the other edge but there still must be an angle away from the house.
No patio cover shall protrude from the sides of the residence"
Easy enough. The patio cover cannot stick out beyond the side edge of the house.
I had an 8x16 feet screen porch added to my home. It is pre-fabricated much like a patio cover might be but it is screened in. The house side support/brace fitted under the roof edge, along the facia. Thus the roof/patio top at the house side is about 9.5 feet off the ground. The roof top at the other side is about 8.5 feet off the ground. The porch roof angle/pitch/slant away from the house is much less then the house roof angle/pitch/slant but it is an
attractive slope (your words above....LOL) away from the house.
Basically I do not see what you qouted above as very restrictive.
Look at
www.sunporch.com or
www.patiocoversunlimited.com
Hope this helps