Raj Nagar Extension: My remote investment concerns

Raj Nagar Extension — I'm seriously considering a 3BHK for investment, around ₹1.2 Cr, but I'm based in Dubai so site visits are tough. I've shortlisted Manglam Dev Homes and some Windsor Paradise Heights projects. My biggest concern is legal clarity, especially buying remotely. How robust is the RERA registration check for Ghaziabad projects, really? What specific red flags should I look for beyond just the registration number? I'm also unsure about remotely verifying title deeds. What are the crucial steps for title verification that an NRI should absolutely not skip? I need to ensure the builder's legal track record is clean. Any advice on reliable legal services for NRIs in Ghaziabad for this level of due diligence? I need to protect my investment from any future legal surprises.