The Cubs want assurance from their contractual rooftop partners that they wo n't sue the team for putting up the city - approved signs .
Rooftop owners remain steadfast in Cubs ' threat to take legal action if the signs breach any owner 's contract .
The Cubs want assurance from their contractual rooftop partners that they wo n't sue the team for putting up the city - approved signs , but rooftop owners remain steadfast in their threat to take legal action if the signs breach any owner 's contract .