Promissory Notes

After sending a promissory note and payment of legal tender, can our credit still be ruined by this?

A residential mortgage note was signed in November of 1998 for a primary residential loan. The terms were $131,000, 8% fixed rate with a amortization of 15 years. The note had a 'call' in 24 months with the balance due. The lien holder (individual not institutional lender) has never excised his legal right by calling the note due or charging the 18% default rate. He never sent a demand in writing or verbal. He has always accepted monthly payments and has said nothing. Now I have been approved for a loan to refinance, and he wants to charge the 18% default rate for the past seven years when I requested a payoff. Also, would 'laches' come into play in this dispute?

I loaned a friend $15,000 five and a half yrs ago with repayments to commence September of 2006 at a min of $250/month. She paid back a total of $2500 from September of 2006 thru March of 2007 then stopped due to financial problems. Can I sue her even tho the original loan is more than the 4 years statute of limitations when repayment is only 11 months lapsed?

I have a promissory note with an investment company in California and I opted for a 6 month payment penalty for early redemption. They replied that the segregated security regarding my investment has been submitted for sale and the proceeds awaited. What does this mean please?

The first line of a guaranty promissory note it states.'IN CONSIDERATION of and in order to induce ________ to enter into those certain Promissory note, copies of which are attached hereto and made a part hereof for all purposes. WHAT GOES IN THE FIRST BLANK?