In 1-2 years you could save enough to purchase a home to house hack.

The primary thing you're going to run into is whether or not a lender, at purchase of the property, will allow there to be a secondary lien on the property.

If so they may have a real estate license or they may work with an agent that relies on repeat business rather than a one-off purchase. 

Purchase price: $450,000 Cash invested: $450,000 Centrally located near Shopping, Entertainment, Transportation and much more.

Obviously, they, or the co they financed, purchased these brand names that all other major brand companies passed over.  

But you have to purchase new investment property of at least as much as your net sale to avoid tax. 

Quote from @Armani Diaz: Hello, I just purchased a rental property duplex through wholesaler.

Also, you can possibly take equity out of your current properties instead of taking out a construction/hard money loans.Purchase and Rehab Financing:If you are doing simple purchase and rehab (not ground up), then it's not that hard to qualify and you just need to right broker/program.

I imagine the only way it would be possible is to do the bulk purchase in cash, sell off a couple and then put debt on them?

Your 'cost' should include everything, from land purchase, soft costs, holding costs, and hard costs.