very of the said conveyances & assignments to the said Thomas P. Grosvenor and Benjamin Haxstun???and upon their being put into quiet and peaceable possession of the property so to be conveyed or assigned and of the Deeds Books Vouchers and evidences of Debts or other property to him the said Solomon Chandler owing & belonging, then and in such Case they the aforesaid Creditors by said Power of At