Well since a lot of the conversation is about the life insurance policy, let me chime in on the where to begin. This is wholly based on my experience, but I'd say the best formula is the following:
-Learn to underwrite deals. Find a financial model, but a simple one, that helps calculate NOI, based on Income and Expense. In consideration of debt service, understand calculating cash flows. Also consider capex costs, renovation costs, etc.
-Underwrite deals - as many as you can find. Search zillow, find properties that look like a great deal. Then take out the excel sheet and underwrite it. What's the income, what's the expense, what's the debt service, and how much money do I have to put into it?
-Think you have a good deal? Put in an offer. Request actual real life data, utility bills, insurance bills, taxes, etc. During this time take back to your financial model and keep updating it to get it as accurate as possible.
Now at this point you're at the last step of getting into things, which is closing on the deal. Now that you're here, it's about doing the work you set out to do. If it's a turnkey investment that might not be much, but if it's a value add, well get ready to hire your contractors or swing a hammer.
Real estate done right is one of the most rewarding careers. If you have questions lmk :)