You can research these online.

Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

Check online reviews and interview multiple contractors to compare bids.

Obviously, using the online listing page at ALE solutions is different than a cold email, and I am referring to the latter.That brings up an obvious question: how do you develop those leads, then?

I wouldn't say you're going to learn as much going through an online course as you would an in-person one, but it is a lot more convenient. 

It's challenging to distinguish between genuine advice and potential scams in the vast sea of information available online.

My son took the prelicensing course to be an agent when I had my team as big as fifty, but since it was online, he was bored, didn't pay that much attention, and didn't take the test.

Check out online foreclosure auctions in your state too, it is a great place to check out any deals.

There's a bunch of online courses available, look for the ones that offer the self-paced $100-$150 courses. 

Budget $15-$20k for a rewire.To take it a step further, if you build a relationship with your subcontractors they may even teach you how they estimate so you can repeatedly build a robust estimate completely on your own.Excluded from the above is foundation issues & outages in the framing (often caused by foundation issues).