This Partnership Unit Designation may only be amended with the written consent of the General Partner together with the holders of a majority in interest of holders of Series SO Class B OP Units or in the case of substantially similar amendments or amendments with substantially similar effects being adopted by the General Partner in respect of all other series of Class B OP Units established by the Partnership from time to time by a majority in interest of all holders of Class B OP Units, except that, the General Partner may amend the Schedules hereto in a manner permitted under the Partnership Agreement or this Partnership Unit Designation, or to make any amendments that are clerical or ministerial in nature and do not impact the substantive rights of the holders of Series SO Class B OP Units. Majority in interest shall be calculated on an as converted into Class A OP Units basis, with the number of votes to be cast by each holder of Class B OP Units being equal to the number of Class A OP Units such holder would receive had they converted their Class B OP Units into Class A OP Units, assuming that any conversion lock-up would not apply.