I handle the bookkeeping. 

Start with a foundational BiggerPockets book (keep reading more), listen to the Real Estate Podcast, and read Blog posts.

I communicate frequently with their bookkeeper about my payables and balances, they handle all the city inspections and schedule, they handle the day to day maintenance , they handle all the rent collections very well.it's been a year now, since then the freedom has allowed me to double my personal portfolio, and winter in Florida instead of Michigan.

Just a heads up, this is something a bookkeeper or an accountant would do for bank accounts and credit cards to make sure everything ties out.

Question for you, did you also do the book keeping yourself or did you outsource that task?

Diligent bookkeeping.

First and foremost I would hire a bookkeeper to do this who knows real estate and talk to your accountantbut typically If you have an LLC management company and theY collect the money, and the properties are owned by the LLC, the tenant would pay the Property management company and the property management company would pay the LLC who owns the property.

More LLC’s are definitely a book keeping nightmare2. $1-1.5M per LLC is what I do as well.

I am partly there to keep the cash reserves flowing (maybe serve as hard money lender) and I will do the bookkeeping. 

Bookkeeping is another.