transaction
postnuptial agreement
lease
contractor
keep one's side of the bargain
written agreement
seal the deal
windbill
joker
go-between
endgame
end game
intermediator
out-process
intercessor
make the cheese more binding
horsetrade
legal agreement
submission
definitize
clause
contractually
mediator
concert
intermediary
treat
concordat
exchange of contracts
anticipatory breach
negotiate
mediate
postcontractual
protocol
agree
contracted
sign
counteraccuse
constructive breach
sign on the dotted line
perform
contractibleness
precontract
buy out
dispute resolution