This article will be helpful: https://www.biggerpockets.com/blog/core-four-real-estate-tea...Feel free to reach out if you have any questions.

https://www.biggerpockets.com/blog/what-documents-do-you-nee...BRRRR Loans: What Are the Options, and How Do DSCR Loans Stack Up?

This might help:https://www.biggerpockets.com/blog/process-esa-lettersGood Luck!

But don’t let this downturn deter you—there’s still plenty of potential for those who understand how to navigate the evolving landscape.The median sale price for townhomes and condos has edged up to $320,000, a modest 1.6% increase from last year.

Take a look at BP's blog where new articles are published every day: https://www.biggerpockets.com/blog4.

Quote from @Bobby Burris: Here's a guide that describes what good cash flow looks like and how to analyze a property.https://www.biggerpockets.com/blog/rental-property-cash-flow...Read a few books on real estate investing to learn the power of leverage.

https://www.biggerpockets.com/blog/brrrr-loans-what-are-the-...BRRRR Loans: What Are the Options, and How Do DSCR Loans Stack Up?

Again, the BiggerPockets store has some books on this topic, or you can learn about it by watching podcasts, reading blogs, and interacting on the forum.

Regarding single-family and modest multi-family dwellings, you're on the right track.

Solo 401khttps://www.biggerpockets.com/member-blogs/2810/21298-solo-401k-advantagesSdira self directed ira https://www.biggerpockets.com/member-blogs/2810/blog_posts/28450-real-estate-ira