Wow, there's no short answer or shortage of resources that might be helpful. Look to your left. There are some great books and tapes from proven investors. I personally recommend finding a mentor and getting a real estate license. The license, if nothing more, gives you access. Good negotiating skills and a boat load of money wouldn't hurt, LOL.
On the flip side, no pun intended, find a good contractor to put on your TEAM. And speaking of team, never hurts to know a good lawyer, CPA, plumber, roofer, line of credit, you get the idea.
A lot of people want to invest in real estate. Most think it starts by buying a property. If your team is ready. Lets next talk strategy...
Lots of good stuff to the left.
H