(a) General rule.--Subject to the provisions of the declaration and other provisions of law, the boundaries between adjoining units may be relocated by an amendment to the declaration upon application to the association by the owners of those units. If the owners of the adjoining units have specified a reallocation between their units of their common element interests, votes in the association and common expense liabilities, the application must state the proposed reallocations. Unless the executive board determines, within 30 days, that the reallocations are unreasonable, the association shall prepare an amendment that identifies the units involved, states the reallocations, is executed by those unit owners, contains words of conveyance between them and, upon recordation, is indexed in the name of the grantor and the grantee.

(b) Preparing and recording plats or plans.--The association shall prepare and record plats or plans necessary to show the altered boundaries between adjoining units and their dimensions and identifying numbers.