The Supreme Court agreed on Monday to take up if the Labor secretary needs to go to federal court to impose massive fines against employers for breaching agricultural visa rules.   The government uses an in-house process and it petitioned the justices to review it after a lower court deemed the setup unconstitutional. A decision is likely by next year.  Solicitor General D. John Sauer called it a “quintessential case” that warrants the justices’ attention.  “By any metric, barring the Department from relying on in-house adjudication of civil penalties to enforce the terms and conditions of the H–2A program — and requiring the Department to jettison its decades-old procedures for resolving such cases — inflicts upheaval in a national program,” Sauer wrote in court filings.  H-2A visas provide foreigners with legal authorization to temporarily perform agricultural…