PCB JD was working on normal loan procedures that had been followed in 25-50+- previous loans on different occasions for different needs. One reason was refinance our loans to help us through the tough times. We did this I believe once or twice over the previous 8 years due to Obama war on Wv. This latest loan was for a refinance. We've done business with PCB for 50+ years. JD our banker for last 15-20 years. PCB was our lean on and showed no signs of that changing. Midstride of JD working on getting this one going he was fired which left us dead in the water. PCB then refused to give my dad another loan of any sort which was expected as indicated by JD that it would happen and happen soon, which normally happened. At this point my Dad went into overdrive and searched everywhere for a loan which he COULD NOT get. PCB then called a note on a certain pc of land of Dad's several pcs, some of which are tied up with PCB for previous loans. Why would they lead my Dad on about loan and just a couple weeks after being told no loan, send a note with total due in 90 days. Next AM dad did it for insurance of $2,000,000 plus.
I am sorry to hear about your father and the troubles you are having. I can only explain that the lending process is usually a long, bureaucratic one, and what seems to be "stringing along" is just the bank following its normal, often frustrating loan approval process. But your father had no "right" to a loan, even with the long course of dealing with this bank, as each loan has to be reviewed on its own merits of creditworthiness. That he could not get a loan elsewhere shows that there may have been an insurmountable credit problem, unfortunately. The firing of the loan officer in the middle of this also raises issues.
I cannot tell you how many people are suing or want to sue banks because of the mess that occurred in the 2008 crash. I have such a case on behalf of a developer. They are not easy to win, and the banks get you coming and going. But a key issue is whether the bank had already issued your father a loan commitment or not. Until a commitment to lend is made, whether you look at it as "stringing along" or review process, the bank is under no legal obligation to lend. And even with a commitment, there are usually conditions that have to be met that if are not met, gives the bank an out. In other words, despite this horrible story, I don't think there is any claim to be made here against the bank. See a local lawyer to go over the facts, however, if a commitment was issued.
I would also advise not posting on social media any further about the manner of your father's death and insurance. Insurance policies usually do not pay on suicides, and to the extent the insurance co.'s investigators scour social media, this will not help.