Panchsheel Prime 390 possession: Legal checks were intense

Has anyone actually checked builder RERA registrations beyond just the number? I just got possession for my 2BHK in Panchsheel Prime 390 Phase 2 in Siddhartha Vihar, and man, the legal checks were a nightmare. My lawyer insisted on digging deep into County Group's past RERA filings, not just for this project but others too. Apparently, minor violations on one project can hint at future issues. Also, title verification for the land was crucial, especially with some plots being sub-leased in Ghaziabad. We found some old encumbrances that needed clearing. It's not just about the final price, you know? What other hidden legal due diligence steps did you guys find helpful? Really want to hear if RERA complaints are actually effective or just on paper.