L&I Violation in Philadelphia - How to Resolve?

[Alex M.]

Has anyone here dealt with an L&I violation on a rental property. I recently applied for a business license on a new rental and found that there were a few violations posted for work completed without permits: construction/demo, electric and plumbing.

I am working with a permit expeditor to get this cleared up. It should be simple (or so it seems). However, the contractor that did the work is not being very responsive. If they do not respond, it appears I may need another licensed contractor to sign off on all the work done. 

Have any of you ever had to do this? What was the process? How much did it cost? How long did it take?

As an aside - the place already has a lease to some fantastic tenants who are willing to extend the move in date a couple of weeks. I am hoping to avoid causing any headache for them so that they can move in on time.

Thanks in advance.