In the latest fallout from a settlement ending most agriculture in the Point Reyes National Seashore, an attorney representing dozens of ranch tenants and workers has filed a new lawsuit aiming to block their eviction. 

The complaint accuses the National Park Service and the Nature Conservancy of conspiring to drive ranchers from the park, ensnaring a prominent environmental organization—one that has cast itself as referee and benefactor—in new litigation.

“This was an illegal arrangement…