A reverse mortgage loan contract may provide that it is the primary obligation of the borrower to pay some or all of the property taxes, hazard insurance premiums, private or federal mortgage insurance premiums, and assessments, in a timely manner, and that the failure of the borrower to make these payments and to provide evidence of payment to the lender may constitute grounds for default of the loan. A reverse mortgage loan contract shall state that if a borrower fails to pay property taxes, insurance premiums, or assessments, the lender may choose, at the lender's option, to pay the amounts due, charge them to the loan, and recalculate regularly scheduled payments under the loan to account for the increased outstanding loan balance.