I like cutting paper checks to vendors and etc...I like the big black business checkbook binder, especially on the jobsite (nothing feels more like the Boss than having that check binder in hand).You can que checks to be printed in Quickbooks and then print and sign them.Or have someone else prepare, que and print the checks for you, but retain signing authority to yourself and physically control the paper checks to prevent theft of funds.You could run an A/P day every 2 weeks (or more, or less) as needed.Standard Accounts Payable precautions (bonded, etc...) should be taken if you have someone else keying them in (your CPA should be able to clarify this).With another set of eyes and hands on the cash bank account you have to be careful of embezzlement.Then just have the person paperclip the check to the invoice and stack them in a wire basket for you signature.When done signing, return them to the person for envelopes and mailing.Have your A/R person input the handwritten checks from the binder also.

Maybe hire out the walking and you manage the scheduling/invoicing.

Regardless of how you do it, you need to really be on top of bids, invoices and payments.

But unless you're an expert bookkeeper/accountant, you won't set up all the extras, like bills and invoices and a proper chart of accounts, that lead to answers to the questions folks like you and I really have:How much money is owed to my business right now?

And she has photos and invoices for a lot of the damage to the wall.

Very professional, itemized invoices, pay by CC, etc...

I used to just pay invoices and think it was a waste of time to shop around too much. 

They weren't able to work it out (not sure how hard they tried or even if they tried) so I invoiced B, C, and D for A's portion of the deposit, and to tell me if anything had been damaged prior to their moving in (nothing had). 

The way we keep track of all the invoices and which property they are for is pretty simple.  

I meet with my GC today to discuss invoicing, scheduling etc. as we close on our first flip next Friday (Dec 29th).