You should fill the cheques and present for encashment. The Partnership Firm as well as partners are personally liable and even after dissolution also the firm and partners are liable. Once the cheques are dishonoured you have to file a suit for recovery of the said amount under the summary procedure provided in Order 37 of Code of Civil Procedure, 1908. You should also file a complaint under Section 138 of the Negotiable Instruments Act. For this you will have to first give a notice, within 30 days of the dishonouring of the cheques. Then if payment is not made within 30 days of receipt of notice a complaint has to be filed within 30 days thereafter.