Ricardo,You have a couple of options if you decide to go in with "All cash" you can do a delayed financing loan after you close that will give you back 80% of your purchase price, plus any renovations/repairs.

Purchase price: $160,000 Cash invested: $52,000 Sale price: $240,000 BRRRRUsed OPM How did you find this deal and how did you negotiate it?

Saving money initially will allow you to purchase more units down the road.

Trevor,In my opinion, stick to the companies that purchase, renovate, lease, and manage the properties for investors. 

You'll also need to be well-versed in the Landlord-Tenant Laws of the state you purchase in as well as resources for tenant screening and contracts. 

I also had an initial call with them, but haven't purchased anything with them yet.

Since the property is there, I can only do investor loans in AL, but from a consumer standpoint you can do Conventional, FHA, VA, and USDA as a renovation loan where you take the cost of the property plus the cost of the renovations as your purchase price up to the value of an "As-Repaired" appraisal.

From your tenant's perspective; you purchased the duplex, jacked up his rent, and moved a bunch of people in next door.

I  purchased a home from a for sale by owner, with myself as the homebuyer and the seller navigating the process without a real estate agent.

Bank financing the purchase price and seller financing the down payment.