I'm not sure what you want to achieve. Selectivity seems difficult given the number of Cl and I atoms bonded to aromatic rings. In theory you could do an SNAr on the chlorine ortho/para, probably the ortho being favored, to the carboxylate group. I'm thinking maybe an amine in basic conditions (carbonate or TEA) in a polar aprotic solvent like NMP or DMSO. You may have to esterify the carboxylic acid, can't be sure of that. Example 7 is the most similar to your case I could find.

http://www.commonorganicchemistry.com/Rxn_Pages/SNAr_Cl/SNAr_Cl_Aliphatic_Amines_1.htm