The unlock code can be automatically emailed and texted to a new tenant after they sign & pay online. 

If you don't allow them to stay, they will likely need to go to a long term stay hotel or something else similarly expensive PLUS pay for storage for their belongings, PLUS pay to move their belongings twice rather than once.

If trained properly they will free up a lot of time for you, which allows you to do the highest paying activities.3.

They aren't licensed or insured.At least a PM is typically licensed and insured.From what I've heard Joshua Tree is very saturated so it sounds like your doing good to break even.Since you seem to be doing everything right and going beyond what many are doing, adding someone else to manage the property will just lower your Net profits from having to pay them.

Then why am I paying you a 'lawyer's' fee? 

You will have made over $50K after expenses and if you rent it long term, you will be paying capital gains on any profit once you sell. 

Got $100k business line of credit with 710 credit score to buy some more properties.Do you think it is better idea to buy a rental house (worth $70k) with the credit card paying all?

That way there is No prepayment penalty and you can pay it off when you refinance the new home or other property.

And I would also pay for the cameras to be wired in.Let me know what security cameras or systems you recommend.  

I was on the fence before going but the time spent on the ground helped change my mind.