Acrobat User Community Forums

Ok, I have some knowledge of Acrobat, but in no way near an expert. My question is: I am a real estate agent. I created a fillable form with a digital signature field so my client can fill out the form, digitally sign the document and email back to me. Ok, here is where I get real fuzzy. I know I can use a 3rd party to validate my signature with a certificate. And I think it cost around 19.00 dollars from verisign. Now my client who is opening this document filling out the form and creating a digital signature using adobe reader...is the world saying that since my client used Adobe Reader to create a digital signature, it is not technically Valid (not legally binding). My client would also have to go to a third party to have a digital ID Certificate as well. And if that is the case, I would hate to ask my client "Hey I need 20 bucks so you can sign a legal Digital Signature to this sales agreement" This seems like a big obstacle rather than emailing the document, they sign it and fax it back to me for free!!