It's just packaged fancier and marketed in a way that makes it more compelling to folks who might not realize that people have been doing this for a very long time. 

I would suggest selling all as a package, many investors and people look to house hack are looking for Multi-Unit properties. 

As mentioned your biggest challenge is going to be selling the package at/close to same time. 

Embedded in that software are accounting packages to manage the property. 

With some, these loans are also packaged off...So, yeah, only those "true portfolio" loans are being held by their lenders. 

Just looking for other options to get started with the combo package.  

Quartz countertops, fully tiled bathrooms, higher ceilings and doors, LVP flooring throughout. for us its upgraded appliance packages NO micro above the drop in stove.

At the time my only issue was their loans appear to be backed by wall st.. so the closing docs were enough to kill not one but two trees and took way more time to sign the  whole package then I like to spend signing closing docs :)  But thier fee's and rates are hard to beat. 

Happy to share resources like my investor package and deal analyzer. 

Consequently you either sell to the least qualified owner occupant imaginable, likely pay 6% seller assist, get crushed through the home inspection process or come to the conclusion going through that process 4 times is not worth the hassle and find an investor to purchase the homes as a package at a discounted price.