If you delivered a clean / clear unit and the tenant has had a hand in creating a pest issue by living sloppily, leaving food out, etc. they should remediate the problem or you can leave a few traps, poison, close holes, etc. as a courtesy.If the problem is very severe, hire a professional and bill back to your tenant if they are unwilling to cooperate. 

Some people are stuck in their own routines and limitation and are unwilling to take on a new decision or responsibility. 

Sellers agent was unwilling to work with us and requested a mutual release but eventually agreed to a small deduction from the purchase price but not enough to cover the work that needs to be done.

If the buyer is unwilling to cover the difference above the appraised value, there's a risk in having a price that is so high that it results in longer DOM.

Seller will conduct reasonable efforts to obtain all tenants' signatures on the estoppels but in the event that tenants are unwilling or unavailable to sign, Seller will sign only."

@Christopher Alan Rush to find a good deal for you you need to look for a way that you can help a seller in ways that others (your competition) is unwilling or unable.

FIFO accounting and are unwilling to quickly reduce pricing to match moves in the broader market.

I have been to the property since serving of the abandonment notice and there is a barking mad pit-bull in the property so though the occupants have made no contact, there appear to be someone living at the property who is unwilling to engage or is at least feeding the dog.The sale is not ratified yet.

While working out arrangements with the tenant for repairs, they have become very unwilling to work with us and is trying to put as much of the cost on us even though the fire was caused by gross negligence on the tenants part.

If you are unwilling to do this, maybe you should spend your time on another forum.