Since you describe yourself as a "Home Buyer," I assume you're looking for an investor to put together a rent-to-own deal, or to sell you a rent-to-own home.
As Temi says, if you're interested in a rent-to-own home, you can search one out yourself. Here's a blog I wrote on how to find lease-option and rent-to-own homes: http://www.trulia.com/blog/don_tepper/2010/03/how_you_can_fi
If you're interested in finding a deal already put together, you can find investors who do that at local real estate investment clubs. Here's a link to the clubs in Pennsylvania: http://www.creonline.com/real-estate-clubs/pa.html
If you were interested in having an investor take your current home (as Hannah thought you were asking), the investment clubs are a great place for that, too. To answer Hannah's question: Many investors LOVE lease-options. It's called a sandwich lease-option.
Just a quick scenario: Suppose someone wants to rent their home for $1,000 a month or sell it for $300,000. I negotiate a 4-year lease-option with them. Just making these numbers up, but let's say I agree to rent it for $950 a month with an option to purchase for $295,000. I don't pay an option fee. (Yes, it's possible to do that.)
I turn around and advertise the home: "No bank qualifying! Nice 3 bed/2 bath in Chantilly available now. Payments as low as $1,250 a month. Just 3 payments moves you in! Poor credit OK." So, what am I doing here? I'm getting an up-front option fee of $4,200 (the "3 payments moves you in!") I'm getting $300 a month positive cash flow. Oh, and I've priced the house as $315,000. So if the tenant-buyer exercises the option, I make an additional $20,000 (the spread between $295,000 and $315,000). Will its value rise from $300,000 to $315,000 (for it to appraise) in 4 years? Probably. If not, we can extend the option. Or the tenant-buyer has the option of simply walking away. What if property values climb and it's worth more than $315,000--say $330,000. Well, I've still made $300 a month and $20,000. And the tenant-buyer can buy a property worth $330,000 for only $315,000. Not a bad deal for the tenant-buyer.
What's my rate of return? Impossible to calculate since I didn't put any money into the deal. But, as some would say, "It's good enough."
Yes, investors love rent-to-own situations.
Anyhow, Shamrock, that's how you find rent-to-own houses. Whether you do it on your own or use an investor.
Hope that helps.