Can a bank force payment on business loans, and give one week notice with threat of judgement/ sheriff sale? I think maturity

Asked in Langhorne, PA - almost 2 years

date has passed; however, they've never sent warning other than occasional late letter w/ fee. Last Fri. got fed ex letter from atty. stating pymt in full 2 be made by this friday. Do we have any recourse in meantime? They hold mortgage & HELOC. We worked with them 6 months ago, 2 refinance the 4 loans into one; however, they failed 2 consider taxes which were'nt amotorized. Thus, we'd pay the same amt. once/ month rather than 4 pymts & extend the maturity date by 4 years. Simply buying us time 2 pay off rather than decrease monthly payment by $500 which was the original verbal/ draft agreement w/ manager. We declined & countered; requested 20 yr. term & shot down for ? reasons. Mortg.Bal = $55K matures 2014 HELOC = 65K Business = $14K & 3K $135K in equity