Four individuals were sentenced in federal court in Boston for their involvement in a large-scale marriage fraud scheme, according to the U.S. Attorney's Office. The operation, led by the FBI in Boston, involved arranging sham marriages and submitting fraudulent green card applications for over 600 non-citizen clients. The scheme was designed to circumvent U.S. immigration laws by coordinating fake marriages between undocumented individuals and U.S. citizens. The fraudsters, based in California, charged clients between $20,000 to $35,000 for their services, exploiting provisions under the Violence Against Women Act by claiming abuse from American spouses to facilitate the green card process.