I'm not a customer, but having seen the workflows lawyers go through with documents this product would be extremely useful. I suspect your challenge will be that most laywers are likely risk averse, and would hesitate to put any important changes through something that is not well vetted. I wonder if there's a way to combat that by keeping your product compatible with their usual format, therefor making it a less risky product to try?
Great question - it aims for 100% compatibility with MS Word documents. It falls over on the rendering side, but guarantees not to drop data or miss any text. If you see it on your screen, someone using Word will see it too.
Getting it onto the desktop is the big challenge for the moment!