I've recently started building a software application because I think there is an issue with potential earning lose due to overlooked measures in utilities.

You can start with a house hack, either a SF or a 2-4 unit property.

A good friend of mine told me he started a company to purchase and manage surgical centers.  

Read Beginner’s Guide to help you get started: http://www.biggerpockets.com/real-estate-investingWishing you the best!

Second check EZ landlord .com for denial letters or use chat get as well that helped me to follow laws.

The one that made me confident to start was this one.

However, if tenant does not move in for any reason, other than Landlord’s decision not to rent the apartment, this holding fee shall be forever forfeited and shall not be refunded.Landlord Signature DateBy my signature(s) below, I request that the landlord accept $XXX.00 as a holding fee for (Address) and the payment of such fee shall result in the Landlord not accepting any other tenant(s) for rental of this apartment up and until the commencement of my lease on (Lease Start).

In my expierence that is all going to need to start with a well crafted chart of accounts. 

But when I started self managing in my units in San Diego, it wasn't terribly difficult.

And if the right property is purchased you can recoup the money to pay back loan and any other start up costs to repeat the process.