According to a post on MLBTR, the Nats are one of a handful of team that are competitive balance tax payers. That means that if we sign a qualified FA, we must forfeit our 2nd and 5th highest picks in the 2018 draft, and have our international signing pool reduced by $1 million next year.
That likely means we aren't signing a QFA.
QFAs are: Jake Arrieta, Wade Davis, Lance Lynn, Eric Hosmer, Mike Moustakas, Lorenzo Cain, Alex Cobb, Greg Holland, and Carlos Santana