Yes, also.Basically, you may choose your selection process as long as it is consistent and does not discriminate.

You need a STRONG message that is meaningful to your prospective sellers- delivered consistently, through multiple marketing vehicles, frequently and consistently.

I only say this to tell you I started out like every one else and its taken me a few decades to finally get to were I am at of course got derailed in 08 to 2011  .. but back at it. one thing I like about doing this compared to what I used to do ( flip existing homes) I can close one escrow and have 90 projects.. so I don't need to continually hunt for the next deal.. plus new construction offers more consistency then flipping IE you know going in what its going to cost.. along with your sub base tend to be very professional to down right successful companies..

The seasoned turnkey companies realize that their demand is driven by investors looking for a safe, consistent return.

By providing value, people like and trust you and eventually, if they see you're consistently providing value, they will do deals with you.If you send me a PM, I will introduce you to that introverted engineer.

@Matthew Nicklin is absolutely right, most deals come from consistent follow-up even when you think a lead is lost.

I’m looking at something turn key ready since that’s what’s I’ve been consistently hearing as a beginner.

A normal inspection report (proving the property isn't in too much distress), a consistent payment history and a great rate of return isn't something to pass on if you're trying to make money!  

This building used to be a 4 unit motel in a hot tourist area that has now been converted into a duplex consisting of two 3/2's.

Insulation and energy saving items are the only things that consistently return more than you spend, but they only on the order of 102% or so.However, if your local market is a hot seller's market, you probably don't have to do anything at all.