Rehab costs for 4-story multi-family property

[Mei Bae Wu]

Hi there!

I am interested in investing in a fixer upper but am not knowledgeable about how to estimate costs. 

Can someone help me round out how much a full gut rehab would cost and then build a 4bd 3ba unit on each of the 3 floors plus basement? Including installing an elevator?

I’m new to the real estate investing world and live out of state so I will greatly appreciate everyone’s suggestions!

xoxo

Mei Bae