About 3 years ago I bought tens of millions of altcoins and I haven't done anything with them since. Some of them I think may be worthless as some of them have been de-listed off the exchanges, some of the exchanges I used are no longer in existence (I used about 10 different exchanges because different coins were listed on different exchanges), some I still have on my computer, like litecoin, feathercoin and frankocoin, but I don't know how much they are worth and how to convert them all to bitcoin.
Will pay someone experienced reasonable but healthy percentage if they can help me sort through all this.
Appreciated. Thank you.