Trade for services How did you add value to the deal?

We're seeing an unfamiliar clause and wanted to verify that we're not making a mistake.The broker asks for a $500 fee (they say they reserve the right to retain/charge in its discretion, in any non-closing event to cover for its services).Is it common for a broker to ask a $500 fee out of the EMD in case we back off the offer?

Amount of repair expenses/updates are determined based on property condition.

The leading 3rd party management platform "East Storage Solutions" provides services that make it easy to lease out vacant units.

He has been there since and started paying rent in order to stay while we now try to juggle repairs.

I have no idea what repair cost could be since I still need to research how to do that..

What services are included that you won't be providing?

Offer your services to mom and pop or PM companies Looking to get a taste of REI but not quite yet? 

It's a good thing I'll be able to adjust rents up however, because operating expenses have gone way up also thanks to steeply increasing property taxes, insurance, utilities, lawn care, snow removal, appliances, hiring anyone to do anything, materials, price per square foot to remodel, etc. all goods and services have gone way up.  

I also have pictures from the viewings and repair estimate costs.