Keya Life By The Lake: Legal due diligence kitna crucial hai?

Keya Life By The Lake mein investment plan kar raha hoon, but legal aspects bohot confuse kar rahe hain. Log bolte hain title verification mein bohot issues aate hain. How do we properly check Keya Homes ka legal track record? Aur RERA complaints ka process kitna effective hai, matlab, investors ke liye? Kya sach mein protection milta hai ya bas paperwork hai?