Can i provide Accounting services to US based clients if my accounting firm is based in Pakistan using Quickbooks online Accountant

I am looking for expert advise if i have an accouting firm based in Pakistan, then can i provide accounting and Bookkeeping services to clients based in USA using QuickBooksOnline Accountant?

Also, if i am able to provide theses services in USA then should i have a US QuickBooks Intuit Account or Global? and how can i reach out to the helplines for supporting my Quickbooks queries