But the FFA's decision to strip Tinkler of the ownership licence sidelines him from any sale.
Gallop and Tinkler have been at odds throughout a turbulent season at Newcastle, who finished last on the ladder with just three wins. The on-field woes were compounded when Tinkler sacked seven players in January, further riling the FFA, who were already upset at club finances.
"Anyone who takes control of a sporting club has an obligation to respect the people and the traditions of that club," Gallop said. "HSG has failed miserably to in this regard."
The FFA gave Tinkler's group every opportunity to continue as the owner and operator of the licence, he said.
"But it was unable to meet the conditions required to do so," Gallop said. "Newcastle needs a club operating in a stable environment with certainty of resources in order to be successful and competitive ... HSG has proved to be incapable of meeting these requirements."
Tinkler purchased the Jets' licence in 2010, and a year later assumed ownership of the Newcastle Knights rugby league club. In June last year, the NRL took back control of the Newcastle Knights from Tinkler after he failed to get a multi-million dollar bank guarantee.
-AAP