Paypal chargebacks time window?

I'm considering starting to take PayPal payments from semi-reputable people, but to be honest up until now I haven't ever looked deeper into PayPal.

I believe that you currently have up to 2 months after the transaction to initiate a chargeback. Is that true? Or is it as much as 6 months?

 

6 months.

Always, 180 days.

 

Ouch. Hurts to see.

Anything I can do to fortify the money I've received? I've been looking at my transactions, been mostly selling to a person/company/website in particular.

Would it be possible for him/them to chargeback the entirety of their PayPal transactions? If so, am I stuck the money?

 

As long as this person/company/website is trusted you should not have to worry about chargebacks. Never sell to randoms with paypal, you are basically asking for a chargeback if you do that.