A business line of credit through your LLC protects personal assets, builds business credit, and may allow interest deductions, but it might be harder to secure for a new LLC.

@Sean Dillon figure out how to buy a 2-4 unit with FHA loan.Then rent at least one of the units long-term for stable cashflow.Try STR in another unit as well as the other bedrooms in the unit you live in.You may even consider living in the basement, attic or worse unit in the building to rent everything else out and max cashflow. 

If there are certain areas that you're looking where there aren't any four Plexes, consider building one.

This morning I evicted an inherited tenant in a building that I"ve now owned for just over a year. 

However, if you're a W2 high income earner or business owner, I can't imagine it makes any sense to flip houses, mail mass post cards, wholesale, or build lead gen websites with the value of your time being better spent other places (such as learning about real estate and increasing your income through proven means), such as at your 9-5pm or growing your business, and your real estate is a long term process and you don't need "home run" deals to qualify or make it work.

But I was lucky to get into the cabin building and I'm doing the same with the cabins that I did building my rental portfolio.

I am looking at 1031 possibly or just fixed refi/or use my heloc for the time being on a value add for a building 10-40 units (market dependent on price). 

With the network I have been building I am confident that this will be a viable option in 18 months.

Build a team with all that time in the morning and and the time you have by walking up early etc. 

Build an ADU.