How to claim a loss from a crowdfunding investment at Realtyshares.

They are not providing a K-1. How do I claim a loss?

 

I emailed the company and they stated 'for debt structured investments that have a loss of principal, There will be no tax documents provided. This is because there was no interest income that would have created a taxable event. Therefore you will need to provide your tax adviser with a copy of your subscription agreement, a copy of the distributions and a copy of the updates provided on your investor dashboard for the tax adviser to record the loss. Your adviser will indicate a difference between what was received as principal and what was originally lent.'

 

How does this work in turbotax?  thank you!