Mino Raiola, Balotelli's agent, and one of the player's lawyers have been speaking with City chiefs in Manchester throughout Thursday as they try to reach a rapid conclusion.
The presence of Balotelli's lawyer strongly suggests contracts could be rubber stamped by the end of play, and then Balotelli would have to put his own pen to paper.
Once an agreement is found over wages - previous reports suggested City were offering €3.8 million per annum - City directors will fly back to Milan with Raiola to close the deal on Inter's end, believed to be worth €30m plus bonuses.
Balotelli, City and Inter are all hoping the deal is closed soon, leaving Raiola to hasten the talks.