"Aamir is Neha's neighbor."

Translation: आमिर नेहा का पड़ोसी है।

[McCaulaySi]

Does Aamir necessarily have to come first? Can it be नेहा का पड़ोसी आमीर है?

[RanzoG]

That would say, "Neha's neighbor is Aamir." Is there a difference? You decide.

[Maheshwara19]

Why is का पड़ोसी used? Isn't पड़ोसी feminine?

[enidl2]

पड़ोसी is masculine. Although it ends with an "i".
That is why "ka" is used.