I have some rental properties that I track using Quicken. It has been working ok.
I just added a business register and was working with the Invoice Customize feature to create a new invoice layout for that business. That seems to be ok however, when I go into the new business register and test/post an invoice, it goes to the rental account register, not the new business register. Either This Quicken only allows one "business" or "Rental" invoice per subscription or I have missed a setup step for the new business account. Also, some of the changes I made to the new invoice layout, are showing up on my Rental Invoices.
DaveR