I would door knock and talk to these owners personally but its very difficult given a large geographic location of LA.Im going after residential and commercial apartment buildings.Any tips here will be greatly appreciated, Ive worked hard making hundreds if not thousands of calls and sent out tons of letters etc,no results yet, unfortunately I dont have a sphere of influence or past customers.

Access keys have many issues:Many units can imply many keys. 

Looking for the site that have high accuracy, and easier to access than mls.

The loan would be commercial and would not get on your personal credit history.

A great way for you to have the best of both worlds, is to buy with cash and then take out a HELOC to give yourself access to the cash if you needed/wanted it.  

Investment Info:Large multi-family (5+ units) commercial investment investment.

Unfortunately, all personal lines companies will have a 3-5 property limit before they turn you away.Once a landlord gets beyond 5-10 units, they should really be looking into options with a commercial insurance carrier. 

How can I access this equity to buy rental properties in Florida?

The rest of my savings are in Mutual/income funds that I can easily access within 24 hrs.  

There are two power systems, battery operated or hard wired, which allow the meter to communicate with a wireless router that sends the data to a database at the company (this is accessable to you the owner/property manager via the web) and then a bill is sent to the tenants automatically at a interval that you set.