Here is a list of why adding ADUs in my CA market is typically a poor RE investment:1) The value added by the ADU addition is often significantly less than the cost of adding the ADU.

A well-outlined list of finable offenses in the lease works wonders.

You need to persuade people that selling to you is a better option than calling any of the other numerous solicitations they get in the mail every week or listing it with an RE agent. 

St Cloud MN Duplex, list/purchase price $259,900market rents $1,610 per unit BUT yes, if one really wanted to sec8 income standards are $1,957 per unit so one could go that direction if wanted be.

Raleigh only allows 2 STR listings per house, but you could easily rent the others as mid-term through airbnb's platform (I do this).

Are their listings detailed with good-quality photos?

Here’s a list of non-recourse lenders you can look through.  

In February 2020, the tenants in a unit on a lot she lives on vacated per a 60-day notice, after my mom discovered they've been subletting the house to internet strangers without her consent, violating the lease agreement.

The best deals I find are usually due to agent negligence of the area and a very poor listing presentation.

BP listing real estate friendly CPAs is a good idea though.