If they pay out of their savings or checking they are not charged.I still use quickbooks for my bookkeeping though but it's all been smooth.

It might be a good idea to hire a bookkeeper to keep your books regularly, rather than the person who is actually handling the money.

Something to consider: Financing, contracts, title work, insurance, bookkeeping, taxes and returns can be overwhelming even when personally making a purchase let alone in an LLC when starting out.

Keep in mind, I have little bookkeeping or accounting experience other than what I've learned through my real estate business.  

Some of the more high volume investors will have at least one part time person helping them out like a book keeper, maintenance call service or someone to help with scanning/sorting documents.

Let's say, it costs you 1.5K to get your structures in place (holding LLC or Series-LLC, with or without land trusts, with or without separate operations LLC) and 0.5K per year (for maintaining the LLC properly, bookkeeping, lawyer and CPA, etc.) for a total of 2K.

Also, the month of missed rent (vacancy) skews the percentage as I don't account for vacancy directly in my bookkeeping.  

I have worked as an Auditor, Tax Preparer, Controller, and now as a remotely based bookkeeper. 

Here are some of my favorites:Dropbox is great for general document management.Evernote is great for notes, checklists, biz cards, etc.Insightly is great for task management and CRM.For bookkeeping, QBO is the software of choice.

If you dont have a bookkeeper, it is your duty to properly track all the income and expense so that the income can be allocated to each property and eventually to each state.