Moving to a paperless office, your experiences

TL;DR: want to move the law firm paperless. What're your experiences and opinions on the best way to do that? I've shared my experiences so far below.

First, I don't see a business board, so I'm putting this on the OT and tech boards.

I'm in a small firm and have been doing research on moving a business (in general and specifically a small/mid-sized law firm) to a paperless practice. I see different considerations: heavy reliance on .pdf formatting for documents with an OCR program, using certain tablet or other devices to sign documents and take notes on, cloud-based hard drives (and local external drives to back up on in case internet is down), using a program or other software compatible from desktop to mobile for total access, different note-taking apps/software, etc.

For those looking to do the same or with some experience in this, what are some of your experiences in: transitioning to paperless (paperLESS, not eliminating EVERY piece of paper); best programs for note taking, etc.; your process in taking in emails, faxes, and such and then reformatting them into a flexible .pdf with your preferred proper software, and then organizing client files (do you have a particular software/program for filing besides Windows's or Apple's default?); making it mobile; and perhaps most importantly, making everything quickly accessible and editable by everyone in the company/firm.

I've been experimenting with this stuff on my own before presenting whichever cost-saving paperless system we choose to the boss. I really like OneNote (I'm using Microsoft Surface Pro to compare with others who use Ipad Pro), but my notes are accessible only by me unless I share through email or log in online (not always available on the go)--unless the boss makes a Microsoft account and puts all employees under it so that everyone with their own company email can access it?

Since I'm playing with Microsoft, I've got a terabyte of OneDrive storage, which is great. I have all my files organized the way I like (by work field, then client), and they're accessible online. What's really cool is when I'm working on a document on my Surface Pro (as opposed to company desktop), the document is automatically saving as I work, to the cloud, just like OneNote does. Of course, Word, OneNote, OneDrive, etc. have mobile apps for Apple, so I could literally do all of my work off my phone, albeit slower. There's just the issues of others the office being able to access the documents and notes online without me having to manually share every little thing, and of getting an office-wide calendar so we can all see each other's schedules. Most here use Abacus for the calendar, but it's overbearing and archaic in its attempt to also cover client notes, contact info, and billing; and others here use Clio. It's just inconsistent.

I believe if we use a company-issued email with an attendant note-taking program (or just word documents if need be), cloud services, and any other software we would need attached to that work account (like my Microsoft account with email, cloud storage, the Office suite, etc.; or Apple with attached programs or services; or whoever else), we would have a greater chance of everything working together with few hangups. Obviously, there are the "never Microsoft" and "Apple is for fanboys" crowds. Windows 10 has been good to me these past three or so months.

Discuss?