Hello @Udele Tagoe,
To echo @Dawn Anastasi welcome to BP! You've come to the right place if your looking to take control of your financial future.
I think the first thing you have to do is take a step back and analyze your Dream, Vision, Purpose and Mission. Everything you mentioned in your post is what attracts people to REI. Those are all very good "Why's" and will motivate you to consider how you can change your future. But until you write down the 4 points I mentioned, those Why's will just be day dreams that eventually turn into unrealized promises you made to yourself. Over time they can transform from motivators, to demotivates if you don't take action.
Here's what I mean by Dream, Vision, Purpose and Mission. Put some structure around "I ultimately would like to have large buy and hold commercial portfolio, but I would like to generate cash to be able to pay down some debt and to be able to fund such deals in the near future." Where do you physically envision yourself being when all of that is accomplished. Whats is your day in day out look like. Thats your Dream.
The Vision is "How" you actually get there. From what I can tell, thats why you created this thread. Everyone thus far has given good answers but to really sum them up it comes down to education. Continue reading and listening about REI. No one can tell you what will work best for your life like you can. Eventually a strategy will emerge that makes the most sense to you. How you discover this might be from an investor like Sean Terry on whole Saling or Buy and Holds from one of books by Brandon Turner. Once you've figured the path. Write down why it makes sense and stick to it. Start building a process step by step how you are going to take this strategy and work towards your dream. Thats the Vision.
Your Purpose will be unique to you. What do you bring to the table to follow the vision and reach the dream? For most folks starting a business its passion in whatever your doing. You have do be unrelenting in your journey. When everyone else says "no" or "you can't". Your passion has to see you through it. So your purpose may be to create systems and processes to overcome challenges your company faces. To network with those who have already been in the business and learn from their mistakes. In the beginning your purpose will be extremely broad. But define it. Eventually you'll realize these start to break down into "jobs" or "roles" in your organization.
Finally your Mission is the the task at hand. What are you going to have to do today to get to where you need to be tomorrow. This will change slightly every day, quarter, year but it should always be working towards the Dream, along the path of the Vision, with people who have a Purpose.
Now I have to give credit where credit is due, this my take on the process detailed out in Michael Gerber's book the E-Myth. I actually haven't read the book yet but I did listen to the podcast with him, Josh and Brandon. In just that hour conversation I found myself really trying to understand those 4 points about my business. I'd suggest giving that one a listen when you get to it. But overall these are the first things you should be taking about when you are trying to get off the ground.
Best of luck, hope to see you around the site!