Swarn Nagri investment has hidden legal risks

Since last year, I've been eyeing Swarn Nagri for an investment flat. I'm based in Dubai, so can't do site visits myself. Thinking of a 2BHK, maybe around ₹70-75L, mainly for rental income. My biggest concern is legal clarity, especially with older projects, and builder track record. Is the rental demand solid there? What kind of tenant profile usually rents? Also, are maintenance charges reasonable? For a 3-5 year horizon, is appreciation potential still good, considering Jewar Airport ka hype?