You might need to rank up a little but you could try here n the forums. Just remember to always ask for collateral so you safe. As long as you can do that it's fine and perfectly safe. The problem is getting people who want to loan btc to come to you. I'm not sure how much profit can really be made.
I think he can just pop into the Lending section of this forum. Whatever I read over there tells me that people are putting the price that they want to. So there is competition on how much percentage to be taken as interest rate and you can start lending once you get the lowest interest and people start showing up at your thread. Also, you must offer the escrow service here because it could be risky business and people might just flew away with your money and you may not see the fruitful results over here. Better invest your money into trading or just hold the bitcoin and watch it grow, the traditional way of earning the money. !
Do this if you really don't know what to expect from the bitcoin lending, we can mortgage things in the real world but what you do in the business where it online and everything is anonymous. I never liked the idea of lending anonymous coins and expect return form it. Thats crazy and I would never do it and I will also not take loans as whole thing is different story for me.