It depends. Large enterprise clients would never let you own the IP. But those gigs are usually pretty profitable because they're large and they can afford hig

It depends. Large enterprise clients would never let you own the IP. But those gigs are usually pretty profitable because they're large and they can afford high rates. Small clients mostly don't care unless they are planning on selling the software. And mid sized clients it seems to depend on whether or not they see it as a cost savings measure or competitive advantage. If it's the latter you can usually justify higher rates.