What to know: First Internet Bancorp's planned sale of $869 million in single tenant lease commercial real estate loans to Blackstone would be the biggest individual loan sale in the company's 25-year history. Key insight: Despite the sale, First Internet still likes the single tenant market and plans to continue lending in it.Forward look: The loan sale deal would result in a reduced CRE concentration and higher capital levels for the$6.1 billion-asset First Internet.First Internet Bancorp, which has been ...