It kinda goes along the lines of telling the trouble maker to make sure that nothing harms the client or his property, that if so much as a beer can is thrown in his yard, he will be responsible and they will be back to visit.

No harm in developing the list 30 days in advance.

He said an unhappy seller that finds out a property was immediately resold for profit could come back to harm the agency.

I consider a Class A example to be an SFR or apt within 3 or 4 blocks from the beach or on the bluffs overlooking the wild life sanctuary which has top notch fashion up grades. 

Having a corporation does not shield you from actions that you PERSONALLY do or do not do that harms another.

I'm not a lawyer, so have no idea, but I was taught that if you gave permission, then you could revoke it at a later date and be within your legal rights to do so without harming yourself.

Keep in mind what's good for the goose is good for the gander and one sided obligations, as you are suggesting, won't hold water.Having such an agreement may serve as eye wash to another party and if thought to be valid, they may not seek any action against you, but if they are ever advised and an issue surfaces than such an agreement could be doing more harm than it was worth.IMO, Good luck

I don't think any magistrate or court will make a landlord keep a relationship that presents harm to that person.

You can decide later to either become a better landlord in the future or do something else - no harm, no foul in either decision.

a situation where you cannot close is a disservice to a seller that is on market, and may harm them, all im saying is be carefull with the properties you are trying to wholesale, nothing against it, you just need a better strategy.