5. The total amount owed by a borrower under this act must at no time exceed $50,000, except regarding debts devolved to him by succession subsequently to any loan contracted by him.
For the purpose of the first paragraph, the total amount owed under this act by a farmer or aspiring farmer who has already obtained a loan jointly with others must at no time exceed $50,000, including his relative share in the balance of the loan he has already so obtained jointly.
The total amount owed by joint borrowers under this act shall also at no time exceed $50,000, including the amounts already owed by each of them under loans granted to them and loans of which they have assumed payment.