Guess the replies were what I expected, wasn't sure if there were any products that I could mix into the paint/stain to cure in freezing temps. 

The cure for the problem cost less than a grand, and they ended up walking off on 5 figures of equity.

if the agent asked you to do.. whats 5 minutes to bang out a quick one pager pointed out the defects that you need to cure...

Your lender may.....not likely, but have a VA Program that would allow an escrow hold back of say 1.5 times cost to cure and then go ahead and fund and close without the out of pocket cost to you and closing delay.

I would check state regs but we use 7 day notices with opportunity to cure, then if after that 7 days the issue happens again contact your attorney and proceed with a 7 day notice without cure.

Would refinancing or HELOCSs become more difficult to attain compared to the cure environment?

Many states, including Maine, allow you to place verbiage in your termination of lease notices that there is no right to cure and none is being offered.

A Quiet Title action is not the cure all many think it is.  

Here in San Francisco we post 3 day notices after the lease agreement grace period concludes, and if it doesn't cure we file an Unlawful Detainer and wait for MSC (Mandatory Settlement Conference).

Concrete has water in it and as it cures, water evaporates, and the volume shrinks.