This is a commercial lease. I visited the tenant's business and discovered he had made some major changes to the interior of the building. The lease clearly indicates that no alteration should be made without prior written consent. While I have no problem with the alterations that have taken place, I would like to document this breach some certain way. If I were to write a letter, what kind of information or warning do I need to include? Also, the interior finishes were not completely done as in sheetrock not painted, doors not framed. Can I require him to finish it to my satisfaction?