(a) Preliminary notice of the proposed partition and allotment of purparts under Rule 1560(b) or (c) or the inability to partition the property as provided under Rule 1563 shall be given to the parties in such manner as the court by local rule or special order shall direct.(b)(1) The notice in the case of proposed partition under Rule 1560(b) or (c) shall require the parties within twenty days after service thereof to accept or reject the proposed plan of allocation. The notice in the case of inability to partition shall state that the property will be sold unless objection is made as provided in Rule 1563(b). (2) The notice shall include a description of the property and the proposed partition, the valuation of the property as a whole and of the purparts, if any, into which it is proposed to be divided, the mortgages, liens, encumbrances or charges which affect the whole or any part of the property and the amounts due thereon. A plan or map of the proposed division of the property may be attached to the notice.(3) In lieu of the detailed information set forth in Subdivision (2), the notice may specify a place within the county where the proposed plan and information may be examined.(c) If any party rejects the proposed allotment of the purparts or if no objection is made to a sale under Rule 1563, the property shall be offered for private sale by open bidding confined to the parties to be held upon not less than twenty days’ notice.