I look for whole kitchen packages where people are replacing with stainless or newer. 

Yet somehow I did not have the lady taking the packages on camera (maybe she did not and it was weird set of circumstances with packages delivered to the wrong address).   

The entire package is underwritten up front.

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

When it comes to tax time, Baselane has a feature to download the tax package needed to easily send it over to your CPA. 

Quote from @Chris Mason: Rather than starting with one lender and going back to the tenants, another approach would be to work with a commercial mortgage broker who will put the full credit package in front of 10 or a dozen lenders, and see what they come back with.For example, for scenarios like this, I've seen lenders come back and offer a new loan that has a maturity that's coterminous with the lease.

My question is  can the buyer of bank notes, requrest the origenal loan package and if applicable loan modification files as part of the note purchase?

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.