I rarely read books like that, but I was on vacation and had a copy someone gave me.There are some good takeaways (about automation, creating systems, etc) but that was about it for me, although many people seem to have loved it.

Do they sign off on a form provided by me, get their insurance, then provide me with proof of insurance by submitting a copy?)

If you cannot get a copy of the leases when looking at a property then you should move on.Personally, if I was looking at a duplex or triplex and it was totally empty I would want to know why that is the case.

Give freely.

Ask to see copies of both the leases.

I created folders that I assembled the necessary documents that I might need to buy a property on-the-fly and rehearsed the conversation with the seller enroute to the meetings.In a typical equity purchase deal I would have a purchase agreement with my State's statutory-appropriate language and extra copies for seller.

You could have additional copies of your drawings available and have them do a cost estimate. 

If so save a copy and don't worry.

Anybody can use that contract, you should be able to find a copy online.

Now I have my copy of IRC 2006 handy.