Due to the CA wind storm, my roof is damaged, I do some ugly fix, it costs me around $10K. Before the wind storm, value of my house is $1M, after the storm, it become $900K, after my fix, it become $970K. I wonder how to claim disaster deduction, should I claim $100K(actually loss) or $10K(actually cost) ?
It's very difficult to find out the fair market value of a house, how can I prove my loss?
