I just downloaded the latest version of Electrum dash but is seems strange there are no sigs verification files on the website. Where can I find those?
This will be added on the website once development work is handed over to the dashpay repository. For the moment, you can see SHA256 checksums on the Github account of the developer in the SHA256SUMS.txt.asc file: https://github.com/akhavr/electrum-dash/releases