None of these are consistent and I've been lucky enough to live by them so far.

It will alert you real time on your phone when an alarm goes off and you can pull up the live feed of your cameras whenever you want.Search Amazon for "Home8 Oplink Video-Verified TripleShield Alarm System" 

But you really want to set yourself up where you can afford to do it consistently.

It is similar to Mint.com (if you're familiar) where your bank feeds automatically link to the software.

Stay proactive, if you stay consistent, things will happen.

Just be consistent and mail to your list many times (as @Claire Trammell says) over, say 5 to 8.  

My dad bought a house in a C+ neighborhood and has had to re-tenant it multiple times because of tenants consistently paying late or not paying at all and leaving in a few months.

The one thing I'd avoid is hiring an individual  agent who does property management as a "side business" when sales are down and business is slow - the issue here is these agents don't have a support system or consistent method for handling problems and your property business suffers.

Thank you for any feed back! 

Appreciation is what gives me the most profit, in the form of increasing equity and cash flow both, and in addition to increasing over time it is also much more consistent, higher quality cash flow than what you'd find in a higher CAP rate market.