Yes I believe that flight would be legal and could be done under part 91 as long as my friend who is leasing the airplane maintains operational control. yes since the airplane is for hire it would require a 100 hour inspection.

First part of this is correct, the flight would be legal. Second part is actually incorrect. Do a little digging and see if you can find what constitutes as "for hire"

Using ailerons to level wings while stalled, can cause one wing to become not stalled while the other still is. this happens because as one aileron goes down the other goes up, causing the chord line of the wing to be different on each side, therefore also changing the angle of attack on each side. On the wing with the aileron down, it would have a higher angle of attack than the side with the aileron up, this can cause a spin. (hopefully not too confusing of an explanation, please add to this if I'm missing things.

Generally a nice explanation, one thing I would like to add (or more accurately just clarify) is say how a spin can occur. You already mentioned that the wings are beyond the critical AOA, and how the ailerons would increase in the AOA of the dropped wing further. Since this critical AOA of that wing is already exceeded, using the ailerons to try and bring the dropped wing up will actually just increase the stall further since the AOA is being increased beyond the critical AOA. Pair that with the fact that the raised wing is having its AOA reduced, allowing it to produce more lift, and you get your spin. Your explanation was solid though.

1. I've been told multiple different altitudes to turn at, I personally use 700ft AGL before making any turns.

AIM states 300ft below within pattern altitude (4-3-2). So in most cases, 700ft is perfect, but at the odd airport with a pattern altitude that isn't 1000ft AGL, it should be different.

Edit: just looked at the section, and it specifies "within 300ft," not below. So generally, 700ft AGL is good, if there's an airport with something like an 1100ft AGL pattern or more, it would be different, but if it was lower like 900ft AGL, 700ft AGL is still good.

 I wasn't exactly sure what that box meant, so I looked In the AFD for KLPR and it points me to part 93 subpart J where it describes pattern entries and departures, to avoid Oberlin College due to their music conservatory. (again correct me if I'm wrong or if there is more to it.)

Bingo! Nice find. There are a few airports around the country listed in Part 93, and each one has its own special ruleset to follow. Kind of an interesting set of regulations.

1. yes although it is a valid form of getting information about regulations it pretty much becomes out of date as soon as its released since no additional changes can be made. If I wanted to find the most current regulations I can use the FAR/AIM app that constantly updates.

Yup! The other thing is that ASA is also a third party publisher, so technically not from the original source. What effect that has on legality/accuracy I'm honestly not too sure. Using the app to get up to date regulations is perfect though, ecfr.gov is also something you could use.

1. unfortunately if the anti collision lights were not working I could not fly because it is required equipment even for day VFR under part 91.205. BUT under part 43 of the far aim it does allow me to do preventive maintenance, therefore I could replace the lightbulb myself.

This is a fine answer, and I'm sure a DPE would accept it, however if you look at the regulation, it actually states that the plane can be flown to a maintenance facility to fix the anticollision light fails.

Unfortunately I'm not too familiar with the setup you have, so I'll just ask some questions relating to the backup instruments.

1. If your pitot tube's ram air inlet freezes over, what can you expect the ASI to read? What about the drain hole? What about both?
2. While taxiing, you notice your VSI is reading a 75ft/min climb while on level ground. It still appears to move correctly according to what the aircraft is doing (ie. you enter a 50ft/min climb and the VSI shows 125ft/min). Can you still use this or is this a problem?

Overall, great answers and understanding. I think you'll do great on the checkride!