how to research shelf corporations

Hi,

I am a newbie decided to pursue my real estate investment using stated business lines of credit. In my investigation to that regard, I found out that financial houses indeed do extend lines of credit to companies that that have been established for at least two years and their owner has good credit history.

In my research I came across the term shelf corporations; these are business entities that have been established for a while (at least 2 years) and are for sale for a few hundreds.

I figured, why not buy one that has at least 2 years history to shortcut the wait in time. Bright idea but it does have risks. Hence I am asking investors on this site who have bought shelf corporations or know about the process itself what steps or things I have to do in other to get a good one? As in reliable sources of such shelf corporations? What does the process involve? How to investigate the histories of shelf corporations?

All help on this topic is needed, thanks in advance.

I really do need help, any one that has an idea of what I am talking about please respond