The keyword is good. But the question you need to ask is who is the target audience. Germans would use prozesse.de if they were looking for lawsuits.
Google results for "prozesse" (German pages) = 14 Million
Google results for "lawsuits" (German pages) = 137,000
DE Ovt for "Prozesse" = 2156
DE Ovt for "lawsuits" = 202
Value is difficult to say. Germans do love their .de
I'd say high $xx to low $xxx. :imho: