@Dewayne C.Quickbooks desktop version should be able to handle the bookkeeping function that you are looking to have done.If you are looking for a tax-software to self-prepare your return, any software should be able to handle it so long as they provide Schedule E in the package.Alternatively, you may want to work with an accountant to handle the back-end while you work on making more connections and analyzing more deals.

As part of the process they digitally e-sign my rental agreement, authorize a security deposit, and give them the option to pay by credit card (with a 2.9% surcharge), or send me a check. 

I've bird dogged for a SFR investor before and done direct mail marketing before on my own, but I have not worked as an agent before. 

Being in NC, it sounds like you can drive for dollars, and also purchase a lists for a mail campaign.

Those other opportunities will lead you to create a system(s) to get those other opportunities (talking to attorneys, direct mail, SEO, networking with agents etc..).

@Paul BloomfieldI use a PO Box as a mailing address.

What turned me on to that particular brokerage was the fact that I would see their signs all over the place and I even got some of their direct mail.

and received the standard property appraiser questionnaire in the mail a month or so after purchase. 

Fortunately he is progressing on the project but it’s at a snails pace.

Doubt he will do any type of E-signing.