No contribution of money or other thing of value, including
an in-kind contribution, shall be deemed a violation of this chapter,
nor shall the efficacy of any contract or agreement be thereby affected,
if that contribution was made by the professional business entity
prior to the effective date of this chapter.
A professional business entity, candidate, officeholder, candidate
committee, party committee or PAC may cure a violation of this chapter
if, within 30 days after the prohibited contribution, the Borough
Council is notified of the violation in writing and the prohibited
contribution is returned to the professional business entity.