Omar, you can create a Donor Advised Fund on Fidelity and give your appreciated ETH/LTC/BTC and get a full deduction for the market value as of the date of the gift and then you can gift it out in cash to whoever you want at an time you want. There are some pitfalls to be aware of but here is an article I wrote on the topic. I’m not an accountant and this is not tax advice. https://steemit.com/cryptocurrency/@jbaird/gifting-ethereum-bitcoin-or-litecoin-to-charity-and-the-tax-deductibility-thereof