Had to fix rejection (misspelled name), fixed it this morning 4/19/2017 , will I be subject to a late penalty

No.  You have until April 23 to resubmit or mail your return after it has been rejected to avoid late filing or payment penalties.  See this TurboTax support FAQ - https://ttlc.intuit.com/questions/2441640-what-if-my-return-is-still-pending-or-rejected-on-april-18...