I have nearly 2 years experience in international trade on ebay and paypal.Here is some experience of how to avoid suspension of the paypal account.

In what cases your paypal account will likely be suspended?

1,large sum of funds in or out.For example,it's dangerous that a new account receiving over 1000 USD a night. 

2,Withdraw funds immediately after receiving the payment

3,Withdraw all the funds left in your account.If you have 3000 USD in your account ,withdraw 2500USD is safe.

4,Several buyers file claims in a short time.If you receive a claim refund is the best way to resolve it if not so much money.

5,Transfer your funds to other one's account or transfer other one's funds to your account.It is a very high risk to do that both the account will be suspended

6,Related accounts,if one has several accounts it is very dangerous.There are three cases:1,log on different accounts in one computer ;2,Same IP address log on different accounts;3,different accounts receive the payments from same ebay member

7,Fake items.Very cheap brand items.Like fake LV,Nike,Gucci

Hope it will help you with your ebay and paypal account.Thanks