Vinyl plank is good stuff, but you have to be careful in water prone areas (bathrooms and kitchens) as water can get under it....will destroy OSB or subfloor.

I have left it out in the past but they put so much out it destroyed the stairs and hallway.

They are too easily destroyed.

Similarly if a tree falls on the house destroying it, the contract is void.If escrow has closed, then the heirs inherit the proceeds from the sale not the right to sell it.Talk to an attorney.

Leave a note apologising for the fact that they were inadvertently  destroyed.

I know I have the right to enter and show the property but I also feared them destroying things if I didn't back down.  

If you try to get the agent out of the picture when the owner wants his agent involved you will destroy your credibility.

I don't think it will destroy your  relationship as much as it will make things clearer.  

Then lets say you have one bad tenant that destroys the place and it takes 2-3 months to get the place in shape to rent it again.  

I told her I would prefer to handle this out of court so she doesn't get hit with court fees and destroyed on her credit.