LawPay (an AffiniPay brand) offers eCheck processing that allows you to accept both check and card payments from clients online, with no additional monthly fee. As usual, your clients can send payments directly from their bank account using your secure payment page. This initiates a bank transfer to your account. Other AffiniPay brands also offer the eChecks option for online payments.
Check ClientPay eChecks for details.
Check LawPay eChecks for details.