Multifamily rent ROI/CF

[Brandon Morgan]

Hi all I am a first time investor looking to buy a Multi family in Union county, the Oranges or Essex county. I have an FHA and was planning on house hacking the first year. still looking for a property but everything is so expensive and there's so much competition! when it comes to renting out properties is there any specific website or app you guys use to estimate how much rent is in the area? I have been googling but i wasn't sure if there is specific app for rental prices by area.

What else should I look for or do when it comes to rental properties or determining rent? 

I want to be sure the properties I am looking at can rent for a decent price given the market and area I'm in so i know its worth it. I am also open to any advice or suggestions. thank you.