However, this tenant left personal belongings (mostly bags of baby clothes) in the house.

It's unfortunate that these people became dirt bags the moment they moved into my house.

. :-)The entire reason to provide a proof of funds to a seller is to credibly and authentically demonstrate your intrinsic ability to perform the financial obligations of the contract.

He may have bagged some bigger projects since I started working with him, not sure if his recent attitude change is due to this or just long time bad  feeling towards my communication style erupting.What do you guys think?

Give her some 3 mil thick garbage bags and offer to dispose of any garbage for her.If she refuses to communicate with you, it will become more difficult. 

When you tell and show your authentic experience it not only helps others but while you are writing this you can clearly see what went wrong

Stripped down to beater cars, brown bag lunches, home brew coffee and no malls or restaurants.  

Or in better terms " the game of hot potatoes"- who or which investor is getting stuck holding the bag.

When I got there to replace it, they had a bag of ice in the freezer so it wasn't a big deal.

Any damages to your property, you will pretty much hold the bag for, yes you can report them to S8 for that but you will still be unable to collect :).