I occasionally need to have an additional document signed and I use DocuSign for that.

Real estate agents are usually good for people who only buy one home or the occasional property, but if you're doing this full time you already know the marketing, opening escrow, title reports, closing, etc, etc.

Regardless, if you are going to pay off early, please be sure to leave yourself some liquidity for the occasional speed bump that life throws at you. 

I visit the Twin Cities occasionally and go with a buddy to a local shooting range there.

The principle is what you need to take away ( Use HELOC money to pay your bills, deposit your income back to HELOC balance, Occasionally use HELOC money to pay extra principle on a loan, and repeat).You are gonna have the extra bill of the HELOC payment but Long Term you will have a lot a interest that you're defeating by paying principle off early.  

I am a fan of checking in occasionally to make sure the cleaner is on top of things and to do a walk through to check safety things like deck boards and steps, railings etc.

I occasionally have to do unclaimed property claims related to the estate work I do as the attorney for an estate (unclaimed funds in the decedent's name). 

I understand that things like landscaping and cleaning services will be a constant with the occasional larger furnace and roof jobs required.

Occasionally theres a bit of levity too.  

Originally, I used a local bank because they didn't charge for wires or cashiers checks to close on properties, but once I built a small portfolio and tenants were paying with checks, I realized the cost savings for the occasional closing wasn't worth the fact that they didn't have mobile deposit or an app.And especially when you are starting off, and money will likely be primarily coming from your personal account, it is nice to be able to simply hop on the app, transfer $100k from personal to business account immediately, then wire the money to the title company from the app to be ready for closing.As you get larger, your bank may matter more, as some lenders will require you to hold the bank account for that asset at their bank, but that is a bridge you will be crossing much later on, typically.