The repeal of a statute by this Act shall not affect any action pending or rights existing at the time this Act takes effect; neither shall this Act impair the validity of any proceedings taken or assessment levied under such prior statute or impair the validity of any bonds or other obligations or indebtedness outstanding at the time this Act takes effect. The remedies provided under this Act for the collection of assessments shall extend and be applicable to assessments levied under prior acts.
70 ILCS 605/12-23