The gate is not manned nor does it have a keypad for entry, just electronic openers I believe. 

Nevertheless, orders increased 4% for electrical equipment including appliances, 2% for fabricated-metal parts, 2% for machinery and 2% for computers and electronics.

@Paul Sandhu every VRB I have utilized has also had electronic locks, with such all could be accomplished over the phone of via use of the code they received via e-mail for check in which remains active during their use time and resets to a different code for next tenancy. 

Another vote for YourPorter.I even created an offplatform website through their interface, though I am trying to figure out how to best integrate electronic lease agreement signature.The only thing I am trying to figure out is their Cleaning module - how best to send automated communications to my cleaner.

I often find that when it needs some sort of electronic repair that the part has to be ordered.   

Tenants are able to pay electronically. 

Deals on Electronics I know.. now if I can master the ins and outs of real estate I'll be set.

Making pymts electronically could accomplish some of what you are talking about with a servicer.It really boils down to a level of experience.

I'm just starting to look now and see two that are reasonable (eRentPayment.com and one other that I found simply by googling "accept rent payments electronically" which is 14.95 per month for up to 10 tenants, then $1 per month for each additional. )

And any man who loves his mom will be successful. just sayin....Might I suggest, start to write your business plans down on paper (er... on electrons...)