Section 543 - Adverse possession; how affected by acts across a boundary line1. Notwithstanding any other provision of this article, the existence of de minimus non-structural encroachments including, but not limited to, fences, hedges, shrubbery, plantings, sheds and non-structural walls, shall be deemed to be permissive and non-adverse.2. Notwithstanding any other provision of this article, the acts of lawn mowing or similar maintenance across the boundary line of an adjoining landowner's property shall be deemed permissive and non-adverse.N.Y. Real Prop. Acts. Law § 543