@Rajagopalarao PaidiRecognize time is also money if you are financing it and I have found without an agent will take longer to sell.Also are you local where you could manage all the showings, advertising etc?

The automobile existed for decades before Henry Ford produced the Model T.

Real demand vs advertised demand is wider than folks are giving credit for. 

But unless they advertise the seller finance (and be careful as most are really bad deals), then you'll need to talk them into it.

Via the posting of well defined (defined within the state property code) notices which must be publicised within certain publications/online.In MI the specific Document which must be published is called Notice of Foreclosure by Advertisement.

They are a fraction of the price of those who advertise online.

Why are they advertising that seller financing is available? 

I advertise the houses that way, even if there's an appliance or two that the previous owner has left in them and I don't mention them so that the people coming aren't (or shouldn't be) expecting to find them. 

I read some books and saw the late night advertisements about real estate investing, so I was very interested in this type of property.

There will be a lot of agents advertising their market, and while this can be annoying, it can also be helpful when searching for areas to look in.