It depends what you want to do. If you want to work as an agent with a multiple listing service you will need a licence. You can also buy foreclosures or power of sales and try to sell them for market value. You can rent property out. You could try to gather some investors and start a real estate investment trust, a REIT. The internet has opened a massive potential for for sale by owner websites. You could do all of these.

Be frugal and take things slow. Learn to understand interest rates. Are rates currently rising or falling? Why?Learn about insurance, taxes, utilities, upgrades, etc. Learn to perform the duties of a home inspector or hire one!

Good luck!

Here are some links that may be of help