I do pretty much like more SD than SA, but as you asked, the money that I have to invest it aint that much, goes between 30-40K to start and will be definitely for long term, as I said, I´m a beginner in this business in the US, as commons says I´m at the baby steps stage right now.

I think they contain solid information and will help lay a good foundation as a beginner (Haha, I'm completely new to real estate as well, btw)I'm also going to be reading the following books, and hopefully I can finish all by the end of this month:1) The ABCs of Property Management2) The Advanced Guide to Real Estate Investing3) Long-Distance Real Estate Investing How to Buy, Rehab, and Manage Out-of-State Rental Properties (this might be the most important one to me personally)4) The Book on Investing in Real Estate with No (and Low) Money DownIn addition to reading, I'm consuming crazy amounts of youtube videos, and I'recommend you do this as well.

I envision this portfolio supporting me during my retirement years—though I still plan to work, just in a different capacity than I do today.I recently finished reading "How to Invest in Real Estate: The Ultimate Beginner's Guide" by Josh Dorkin and Brandon Turner, which has been incredibly helpful.

No beginners. 

They have a NEW TITLE AGET KIT FOR BEGINNERS accredited instruction here: (and association membership for those in the industry) https://www.alta.org/career-and-learning/webinars-and-traini...

Start with BiggerPockets Ultimate Beginners Guide (free).

Start with BiggerPockets Ultimate Beginners Guide (free).

Experience: Beginner in real estate investingGoals: My primary goal is to learn more about real estate investing opportunities. 

Single-family homes are simpler to manage and attract long-term tenants, making them great for beginners.

Sub to for beginners with no real money is very dangerous to a seller full stop.