If a family with kids values D+ then the probably already have it, so providing smart TVs where they can log into their subscription is sufficient. 

I can provide him with an online log in so he can review the books from his office.

When I was tracking my hours, I used WhatsApp to communicate with my property manager, contractors, and guests—it timestamped every conversation and became my built-in log for documentation.

Variable income is SUPER hard since covid and no real way around that beyond showing an offer letter that states you get a minimum guaranteed hours, and you may need a payroll log to prove you never went below that number. 

However, I am still very hands-on for my management business, typically logging 80 hours a week between my two jobs.

I would also be keeping a log of any incidents that give rise to new custody issues.

@Gary Abrams A cloud based solution would work really well in your scenario of having other family logging in and helping with management. 

I've paid the neighbors to log into their wifi before as well.

Do you export the raw logs or do you do some manufacturing of them before you sell them.

If Netflix matters to someone they have it already and know how to log into their account on your TV.