We develop it theory of microphase separation in it solution precipitate of flexible AB block copolymers consisting of charged (A) and neutral (B) blocks which are complexed with oppositely charged linear chains(C) via electrostatic in teractions. We analyze regimes of selective solvents: the solvent is Theta for the A blocks and the C chains, whereas it is poor for the B blocks. Despite the selectivity, stoichiometric complexes precipitate because of fluctuations induced electrostatic attraction. Depending oil composition of the diblock copolymer, selectivity of the solvent and fraction of charged groups, direct and inverse spherical, cylindrical and lamellar structures can be stable in the precipitant. Phase diagrams Lire constructed in the strong segregation approximation. Morphological transitions induced by changes of solvent quality and fraction of charged groups are predicted.