I am under contract to buy and flip a house that I am paying $615K for. 

From there, you can move on to the BRRRR method with single-family homes—buying undervalued properties, rehabbing them, renting them out, and refinancing to pull out your investment for the next deal.

Easy Street is a good option BUT you need CASH in liquid checking/savings for down payment of 20% and BIG chunk 2-3 times loan amount to buy out of a prepayment penalty.

That does not require employment or job seasoning instead it uses the rents to qualify and you can take out up to 80% LTV cash.Use the cash to put down on the next 1-2 or more properties as long as the other properties are debt servicing themselves it opens up more opportuities to buy more future assets and increase your passice income.  

The point is that most of the books and gurus out there will sell you the dream and get you hooked on buying into their programs without giving you all the nitty gritty details.You're running a business and must treat it that way. 

They are sure cheap to buy and build up.I thought of building a place out of a part of a 747.

Investment Info:Single-family residence buy & hold investment.

@Polat Caglayan very ambiguosu question, but read the helpful info below to guide your next set of questions:)-------------------------------------------------------------------------------------------Recommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a property in Class D area to Class A standards, what quality of tenant will you get?

I'm looking to purchase a single family home as an investment property (buy and hold strategy).

Once you do get buy something, be sure to look at a cost segregation study for the property.