No, the fourth unit is its own residence (and should have its own address, even if it's the same street address and a specific unit number).If it's a legal fourplex, each of the four units is a unique residence. 

Investment Info:Single-family residence buy & hold investment. 3 bedroom, 2 bath, 2 car garage, 1410± sq ft, 7800± lot.

Took 4 months to complete extensive rehab (bath & kitchen updates, added office, refinished hardwood floors, paint, landscaping, etc.).

3 bed 1 bath , rental average is $850+/month.

Currently there is a same sized house with newer exterior paint on my street for 550k, and others that have sold from 540-570k.

Built in the 1960's, this property is a 3 bed, 3 bath, 1687 square-foot home sitting on 1/3 of an acre on the south-east side of Huntsville, AL.

The investor who owns the property across the street is also developing but his property is zoned correctly already; his property is similar is shape and size.

Hello again, I'm finally closing on my first deal, a duplex 1 bed 1 bath each unit.Both units occupied and they pay $450 each.I bought it for 93k and it needs 15-20k rehab.I can leave it as is and cash flow $400 a month or i can fix it up a little and make $600 on each unit.My problem is that i never had to deal with tenants before and i don't feel good if I'll have to evict them.

Purchase price: $115,000 Cash invested: $25,000 2 bedroom 1 bath with detached garage in Merrillville, IN.

Your boots on the ground will be most important in understanding the neighborhoods and checking if the areas are well kept or not--especially since Indy is well known as being very street by street.We have had some attempted break ins in our vacant units, but this can be mitigated by getting appliances towards the end of the rehab and not putting them by windows, boarding up/covering windows, and getting a security system like simplisafe.