I also connect it with RemoteLock so anytime a guest makes a reservation, a door code is automatically created for them equal to the last four of their phone number.

If not you can get one off the internet or any smart phone App Store. 

Lead Sherpa can match it to phone numbers.

@Neil SmithPull a list from the auditor of what you're looking to call, load it into a dialer, call the numbers and ask to speak with the owner (their first name) - Introduce yourself by being personable (Who you are(first and last name - age/background), where you're from(local guy), and get straight to the point - why you want to buy and if they're interested in hearing an offer on their property - it's like a quick handshake over the phone. 

Given my geographic inability to personally manage the properties and long stretches of not having cell or internet service, I'm calculating 3rd party property management into all my deals.

Your agent generally coordinates showings for prospective tenants, prepares the lease agreement for you, and helps answer questions about the property without you being the one to pick up the phone each time.

I self manage my units, which I love doing, and therefore my tenants have my phone number for when there is an issue.

Set up your own project management tool on your phone and start tracking every grain of information.

I work remotely, always have my phone handy, and love the number side of real estate so I think this would be a great fit for me and something that I could see myself doing long-term.The only downside I see is that I work 8-4 so couldn't spend that time in an office with other brokers or doing real work for clients, I would be working after my day job.

Let me know if you have some free time to jump on the phone this week!