Mohali mein property shortlisting: Location se pehle legal check, is it true?

Budget finalised, loan pre-approved – ab Mohali mein property search shuru karni hai. Swaraj Homes Builders & Developer ka ek project dekha tha, but I'm honestly not sure where to even begin shortlisting. Meri family keh rahi hai ki location sabse pehle dekho, but mere friends bol rahe hain ki builder ka track record aur legal checks pehle karwao. Kya builder ki reputation se pehle RERA aur title search karwa lena chahiye? Ya fir ek baar site visit karke pasand aaye toh hi aage badhein? Bahut confusion hai, which approach is better for a first-time buyer?