What would you do for a roof not done properly by previous owner?

[Christophe D.]

Hello,

First, I am a newbie in this beautiful world of REI.

I have acquired a duplex, in Wadworth (OH), 7 months ago.
At this time, the seller (Roofstock) gave me an inspection report, showing no problem concerning the roof. Then few weeks after, the previous owner confirm that the roof was just changed, and provide me with an invoice (on my request).

Today, further to a leak on the roof, I have tried to contact the roofing company who changed the roof. But it seems the company does not exist.

At that time, I did not check the name of the invoice.

I send a new roofing company to inspect and fix the leak. The contractor told me the roof need to be redone completely because the work has been done very badly.

What would you do? Or what would be your advices?

Do you have any recommendation of a roofing company in the area of Wadworth (Oh)

Thank you in advance for your help.