and what can be scanned, and what should remain hard-copy?

I have a business that hasn't been operational since 2013. I'm selling all assets this year and will be shutting down the corporation.

I have a few boxes full of business related stuff. Everything from utility bills, to landlord notices, attorney notifications, tax returns, Z-outs from the registers, etc.

I was going to sit down with my ScanSnap scanner and digitize everything I can. Keep one set on my network storage, and upload another copy to the cloud in an encrypted container.

Is there any reason to keep any monthly bills? And, what items would I be able to scan and keep in electronic format versus keeping paper sitting around? Obviously I'll keep shareholder documents, etc... but I'd really like to pare this all down to the smallest box possible so I can store the bare minimum easily, and when the time comes several years from now I can just delete the electronic folder and toss the box and be done with it.

I recently started a LLC and this is what I found in my own search.

IRS Record Keeping

Is it OK to digitize tax returns, etc?

IRS PUB 583 Page 12