Quote Originally Posted by brodybro1 View Post
but only one business name appears on their forms for my businesses.

In other words, whether my customer is coming from Biz A or Biz B, the form header and text shows Biz A. This will be confusing for my customers. Especially when I eventually get to Biz X, Y and Z.

Only thing I know to do is customize the form headers with logos for both businesses (go to Profile/Custom Payment Page Styles in your PayPal Business account for a tutorial).

This does not allow me to change the biz name in the text within the form(s) my customers will encounter at PayPal and I see no way to change or modify my business name through my PayPal account preferences. I can't even insert a statement that one biz is a subsidiary/affiliate of the other.
That's correct. Your PayPal Account Name will always show the same information regardless which store you come from.

You have three options:
a) create separate PayPal Business Accounts for each business.
b) rebrand with visuals and hope that the customer doesn't get confused by the business name
c) ask PayPal to rename your account's business name to something more generic (You'll meet with some resistance there unless you have a compelling argument).

Option (a) is really the most appropriate if these stores are separate businesses.