Despite Alan Hardy's takeover of the club, the embargo remains due to "higher than expected levels of debt during the takeover process", but Nolan is hopeful that this will be rectified.
Nolan is also considering registering himself as a player, but not for the time being.
"At this minute I'm fully focused on getting the lads right and trying to get my mentality and formation in place," he told talkSPORT.
"We've got this week to do that before Grimsby. The lads have been first class I've got to admit since I walked through the door.
"The chairman has been first class since I've come in. Anything I've needed he's kept his promises.
"We are starting to get the embargo lifted. Maybe we can get some faces in before the end of the window. He's working hard to do that."
Share your thoughts about this story on Pride of Nottingham by signing up to the website, visiting the forum and joining the conversation.