As students head back to school this fall, government contractors considering a sale have some homework of their own. Companies serving federal customers, particularly in the defense, aerospace and technology sectors, continue to attract substantial interest from strategic buyers and investors alike. But government contractors also operate under contractual and regulatory requirements that can create unique issues in an M&A transaction. Those issues can affect valuation, deal structure, representations and warranties, closing conditions and transaction timing. For sellers, the best time to identify these issues is before buyers begin diligence.