Waiting for the delivery of my package which should be here by the 8th.

There are many factors to consider when transitioning from "smoking allowed" to "smoking prohibited", the biggest one being the human element. 

This is correct, OP.If you want them both then you can certainly negotiate them as a package, but the residential lender will want two purchase contracts, two appraisals, two escrows, etc etc.

I'm selling a package of 8 duplexes.

Also, Im not a tax professional and this is not tax advice, but your CPA should be able to claim you deprecation on your investment as well, gaining you even more tax benefit.Solar panels provide cover from the elements to the shingles located below them, thus increasing shingle life.

Put together a package on your business strategy and any experience you have and a lending packet on the property.

Had a tenant without heat this winter during a cold snap (temps about 19-20 degrees Fahrenheit)Checked out package unit, scheduled a unit replacement, brought over three space heaters to add to their 1.

I've worked as a licensed athletic trainer, a maintenance technician for a local school/church, a package handler at FedEx Express, and I own and operate a small landscaping company. 

We don't have the full picture here but if you're married and present well to banks as a 'package deal' (say with your wife) then I might modify some of what I write below....

If your portfolio is a good deal you won't have an issue finding buyers.If you truly have control of a package is one thing, if you are trying to play match maker with no real control, that is a weaker position.