How many paypal accounts can i have?

You can only have 2. 1 Business and 1 personal. However, you can have additional email addresses for each account (if you're thinking about brand seperation/branding)

 

I think if u can make 2 paypal account in 1 ip adress.
Although same or not same adress

 

There is limitation upto 2 accounts. If chargeback happens no trick can save you. Money will be reversed to buyers account.