Treadstone Funding Residential Mortgage Lender Treadstone is a locally owned residential mortgage lender in downtown Grand Rapids. We specialize in relationships and all major loan types and refinances. We are a 203k repair loan lender. Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.