Also, set up a ring doorbell camera at your front entrance.

Any tips when it comes to digital marketing, referral partnering, or simply becoming a top of mind agent in my region? 

Your burn rate is extremely critical and the reason why is because the amount of money that you spend daily to carry that asset or that home can eat away your profits so as an example if you factor in your monthly payment on interest, your utility bills, your internet bills if you're monitoring via camera if you factor in taxes and insurance HOA fees these are all things that add to your burn rate.

I have put all battery operated digital locks on my doors and change the combo with each tenant.

If you purchase from the BP Store, it comes with spreadsheets and other digital files, including an SOW template.https://store.biggerpockets.co...

You can have a septic company run a camera down the line to check for collapses, tree roots, etc., but the coverage is relatively inexpensive relative to the potential cost of the fix.

@Bryan PotterWhy would you sell a cash flowing property, that too your cash flow is 4 digits.

If cash on cash is not double digits sell and evaluate your housing needs first. 

She has been noticing things were misplaced in the home and set up some security cameras inside because she is single and traveling alone.  

Well, we've gotten so much rain the fill turned to slush and they had to dig it back out to fill the whole hole with gravel and pack it.