Ideally, you would make each property its own cost centre, but if you make the book keeping too elaborate it will become too much of a chore and it won't get done {just ask my accountant ... and our new book keeper}.

QBO integrates with so many apps that you can almost fully automate your bookkeeping if you put some time into it.

I prefer the Florida farbar lease and QuickBooks for bookkeeping

If not, where should I keep a record of that event in my bookkeeping?

Partner makes plenty of money he just needs a bookkeeper. 

We've always done our own book keeping, financials and income taxes but it is a lot of work.

You can put the money in a separate account or create a sub-account in your bookkeeping system.

Been at this for about five years now so I wouldn't consider myself a newbie but still lots to learn especially with book keeping and tenant management.

@Jeff SedigYes, I include those along with travel, bookkeeping, and other costs incurred to purchase/manage the investment.

Doesn't seem like you're a financial analyst or perhaps even a basic bookkeeper, so the value to me seems rather low.