Are there really any laws requiring special types of signatures? Because I've never had a legal doc sent to me that they weren't fine with just stamping my signature on the line or even printing it out, signing it, and scanning it back in.
DocuSign supports those mainly through some interop connections where, for example, a qualified signature vendor provides an API that DocuSign can use to sign the document.
It was odd because I handled federal and state contracts in previous job, they don't have a problem with e-signature.