If you can house hack, that's a perfect start.Here are some resources I recommend to newcomers (not paid for mentioning anything in this post:)Personal FinanceI strongly suggest learning as much as possible about personal finance (if you haven’t already) as I believe strong personal finances is the foundation for a strong real estate portfolio.

After pouring a ton of money in these properties, looking at the numbers, it doesn't make sense for these investors to spend any more resources on them.

The wholesaler collects a predetermined fee and you buy the property just like in any other transaction.

What resources would you recommend?

But I’ve been trying to get my hands on as many books as possible, as many resources, podcasts, etc., but I was just wondering from my Bigger Pockets family if there is anything SPECIFICALLY that has helped you take large steps towards the direction you want to go with REI and your own personal careers?

If you’ve put the money down for your son’s house purchase, make sure he’s agreed to some amount of “effective” rent so he’s incentivized to collect from everyone else so his share of profits makes his living cost closer to $0.

Or if you don't mind you can collect cash-flow each month by renting the house and then selling the property later on. 

She will be a great resource to you.

Do you all have a separate account to collect your vacancy, repairs, & capex % for each property?

There are so many great free educational resources online on the details of flipping (and saving on taxes), and even more on straightforward rentals.