My company uses a 2% fee. 15% is massive, but could be fair depending on how you structure the rest of the deal.

It depends on each location's age and many factors but 7% is not possible unless you were getting much higher rents as if you were running a short term vacation rental. 

I guess it depends on a multitude of parameters.

Depends in the return and quality of information received.

It isn't bad or good, it all depends on a persons goals and level of involvement, or lack of involvement, that they want. 

Depending on how long they've been on the market, desire to sell, etc, the seller may consider your offer.  

You success is going to depend upon your ability to be consistent.

depending on where you're looking.... you might find it extremely hard to get a deal on commercial side.

If you are doing it in excel - a receipt for $100 that consisted of $25 paint, $25 tools, $50 roof supplies.can be entered into excel like$25 paint$25 tools$50 roof suppliesAt the end of the year you can sum up all the costs by description and provide that to your accountant.A couple things to point outWhether you expense an item or capitalize it will depend on several factors such as if you are increasing the useful life of the item, making it ready for a different use or making it more efficient.

That will determine what your offer will be.  70% is not a rule and it varies from 30 to 80 depending on heat.