I know ProtonMail is more private/secure and prevents Google compiling even more info on you by reading all the business emails, but would having a shared Google Drive for easy access to documents by both spouses outweigh it?

Either each quarter or year-end I would compile the bank rec report along with other financial reports for their CPA.

We've spent years compiling a list. 

Make coffee, open doors for lookyy loo lease tenants, drop flyers, compile lists of owners and cold call for minimum wage for six months.

In how much time will it take a person to compile all that knowledge and experience?

A few factors to have out first though such as renter class and strategy you're looking at and other general data all coming into portfolio compilation.

If and when that happens, you file a single state tax return that compiles them altogether and you've met your obligations.

I compiled the post from a few sources but here’s one that talks about the main points:https://www.latimes.com/world-...

To assist you in taking the first steps towards investing, I've compiled a concise list of actionable recommendations:1.

I guess what we'd like is a program that is user-friendly/ intuitive, can keep easy track of payments, maintenance work orders, and if it can possibly communicate with Quickbooks or tax software or can at least compile things in a format which is easy to integrate into tax accounting that would be great.