offer forms, business credit score

Offer forms:

I would like to know, do I need a realtor to make an offer? I seen on the bottom of an offer form I went to that site and no links worked. I searched the web and they all costed money. Is there a free site? Could I tailor my own offer form from the one that I currently have, in the future?

Business Credit Score:

How is the credit score originally made? Is it related to my invididual score or does it defaults to the lowest score?

Thanks guys