In most cases you will use alternative financing (Cash, Hard/Private Money Lenders, or Seller financing , to name a few) to acquire the property.  

Hello all, Within the last year, I acquired my first rental property.

a) Use the rental property I already acquired as the physical address of the LLC (seems like it would be difficult to reliably collect mail there after it is rented)b) Contract a private company, such as UPS, to provide a physical address in West Virginia for the LLC.

But what if I could acquire the property for less, and increase the rents?

I have started to build the feature set assuming the owner already acquired their plot and permit.

My goal has always been to acquire buy and hold rentals to setup a good retirement, but now that I have been reading BiggerPockets, I would like to see how far I can take it.

Gerard,Dan is correct, I believe you are looking at syndication firms that pool investor money (investor is a limited partner in the deal) and the syndicate group does all the work finding, acquiring, improving and managing the asset with the goal of earning attractive risk adjusted returns.  

I am a fan of using as little of my own money as possible to acquire properties, thus getting my initial capital back as quickly as possible to invest again, and again.

My idea of a Flip is to acquire a smaller property for as close to Land Value as possible and then the improvements will pay for themselves or add value for the Sale.

You use the power of OPP to acquire those properties.