Work will not begin until both parties have agreed terms and signed a legally binding contract.
Please note that the editing of a manuscript by myself in no way implies that it will be selected for peer review or accepted by a publication. The decisions of journal editors are based on the quality and suitability of a manuscript for that journal and are entirely independent of whether the manuscript has been language-edited.
If I edit your manuscript and then you make further changes to it that you do not allow me to review, then the journal’s editor-in-chief may think that you did not have your manuscript edited by an English-language editor. I will not be held responsible for such an outcome.