Maybe wait for eBayMafia to chime in here, he should / might have some knowledge.
I run 3 eBay accounts, all running off of the same linked Paypal account. So I have a primary PP account, and to that I have linked several more email addresses. But whenever someone sends me a payment to ANY emails address, no matter which email address I use to log in, I can see the funds from all email addresses - if that makes sense.
So, you can link multiple emails to one PaYpal, but effectively, it is just like you have only one PayPal account anyway.
Hope this helps somehow.
Yeah, some people just aren't affected by eBays and PayPals change of rules on accounts being linked. I have several accounts just like yours, and my only idea is that I haven't had any flags raised to cause someone to look at my account, and that I was grandfathered in much like you probably were. I wasn't able to create two eBay accounts and run them together on the same PayPal account since a couple months ago.
This is whats hard about it now.
You create a new eBay and PayPal account to sell wooden trains and yo-yo's.
You can only sell 10 items the first 30 days, after those 10 items, you can not sell anything on any other accounts, so you wait.
The second month, you can sell 50 items.
The third month, you can sell 100 items.
The fourth month, you go under review after you reach your limit, you can not sell anything on any other accounts.
So, you get to the point where you can sell 300 items a month, and make $5,000/mo.
You think "Man, I really do not want to sell vintage clothing on the same account" so you create a new account, maybe you let your wife or mother sell on your new account. You go through the process again..
You create your 2nd account, and you can only sell 10 items the first 30 days. You sell your 10 items... then bam, you are suspended or eBay is calling you up. Why? Because you are selling things on your 1st account.
eBay/PayPal probably doesn't even know it's like this, and if they do, they don't care. I've called eBay and said I was opening up another account to sell sex toys on or something, they said "no problem" then they are calling me the next day to say my first account is suspended for 30 days because it's linked to another.