Consumer Redressal

I have purchased a under construction flat in Badlapur in July 2010. I shifted there in June 2011. Since 1st monsson i.e, June 2011 the flat is full of defects like leakage in pillars, leakage in cealing, Plasters are peeling off, walls are wet all the 12mnths without any source of water, poor quality construction materials been used, poor quality marbles and cracked tiles had been used. The defects are so severe that it is not going even though applied wall putty to entire flat. Builder has even utilised our parking space for constructing new building and till date he neither formed society nor transfered the conveyance deed. In Feb 2012 when we sent him notice he started demanding rs35,000 for society formation which we already paid and received Pocession letter. We filed a case in September 2013 in Consumer forum Thane but after 1yr our lawyer grabbed rs20,000 and withdrawn her vakalatnama. Now i need a good consumer lawyer. I have all documentary evidence as proof. please suggest