Some of the areas that we invest in have some clauses in their zoning forbidding more than 3 individuals unrelated by blood or marriage from occupying the same unit. 

Most investors take a look at the available rental units in a particular market,  determine if its a good or bad market based on DOM and either dismiss the market all together or replicate the housing units that are absorbed.

Where have you see multi-family units appreciating and increasing in rental cash flow?

Here’s how you can approach both issues:For rent comparables, since RentCast and Rentometer are giving you different results, the best way to narrow them down is by averaging the estimates and focusing on properties that closely match the one you’re analyzing in terms of size, number of units, and amenities.

For example in many jurisdictions I can STR units in a duplex but cannot STR an ADU (some jurisdictions will let you STR if you owner occupy).

How do you calculate the Returns in a multi-family unit?

It can sometimes happen even shortly after buying a unit - life forces change sometimes.

Given that your property has been subdivided into two rental units, it should indeed be compared to other multifamily properties in the area, not single-family homes.

Hi all,I'm new to investing and saw a 4-unit property this week.   

@Lucas Helliker I am a multifamily broker who only sells multifamily in the KC metro - typically 5-50 units but go as low as 2 and up to about 72 units.