For your particular situation, I would recommend reading the "Multifamily Millionaire, Vol 1" by Bigger Pockets followed by Vol 2 if you want to scale up to larger deals. 

Keep on scaling with adequate reserves until you hit your point where you no longer want to grow.

Instead, a better way to scale is to take that same money, and split it over 3-4 down payments to then be in a position to do 3-4 deals.

Its the best way to stretch your capital and scale your portfolio.

Hello, I am completely new to investing money on a scale such as this.

In most cases, if you're trying to grow your portfolio, doing a cash out refinance without getting enough cash out to be able to reinvest to majorly help you with the down payment on your next deal is probably going to slow your growth and ability to scale. 

All you need to do is find a lender that understands and specializes in working with BRRRR method investors that flip at scale and at speed.

Hey mate,My opinion is to hire a local trusted property manager.Investing in real estate should not be about getting yourself into "another job" but rather elevating and delegating.Don't do the "$20 per hour work" per se but rather focus on scaling your portfolio.Granted a property manager can "make" or "brake" an investment so be super diligent.Just my opinion for what it's worth.All the best

Costly at scale. 

My plan is to D4D or pull list from county and begin marketing on a small scale but with a buyers mindset (whatever doesn't meet my criteria, ill whole sale) I am a little lost or should I say would like to get investor opinions on my plan and gain some insights from you all.I don't know much about financing or rehab I have never done it and it feels intimidating while supporting a family