Article 4 is standard language in CRE mortgages. It just means that the borrower cannot sell the property without paying off their mortgage. The approval from the lender constitutes providing an amount needed to satisfy the mortgage.
Article 5 is also standard language in CRE mortgages. It gives the lender the right to protect their lien on the property.
Article 9 lists what can constitute an event of default and how it can be cured. Again, standard language.
Nothing in these articles says that APT is or has been in default on their loan.