That would work only slightly better than the top level salary cap being the lowest salary - dodged via a nesting doll of layered corporations as contractors or using actual ones. In that case they would have a top level entity with C-levels and elite lawyers which just so happens to own the rights and assume legal responsibility for the lower corporation.

In which case just save everyone the hassle and pass a law requiring proportionality to the degree of defined max lawyers per lawsuit of size defined in some workable metric so it doesn't take decades just to go through every mortgage in a AAA bank with solo lawyers on each side. It would limit the use of lawyer armies but it may lose a constitutional challenge on grounds of right to petition the government for redress.