The lawyer for the Finks motorcycle club's Gold Coast chapter says New South Wales will not be the only state to copy Queensland's anti-bikie laws.
The Gold Coast Finks this month challenged the legislation in the High Court but it ruled the laws were valid.
The NSW Premier wants laws, based on Queensland legislation, in place by Easter.
Finks' lawyer Bill Potts says other jurisdictions are likely to adopt legislation based on the Queensland model.
Mr Potts says motorcycle clubs do not have the funds to fight anti-bikie laws in every state and territory.
"The effect of this copycat legislation will be that the motorcycle groups which are effectively national in reach will have to fight many battles on many fronts this will financially exhaust them," he said.
"Each of the states and territories were represented in the High Court and each of them in turn argued for the validity of the Queensland legislation.
"It is a sure and certain signal that each of the jurisdictions in turn will pass similar legislation."
The Supreme Court has set aside seven weeks from mid-October to decide whether the Finks should be declared a criminal organisation.