This may not offer much in this discussion thread about voiding this woman's marriage to my Father, but it does give a little more insight into what motivates this woman...
The creditors who are after her for $100,000 are some former employers of hers who filed criminal felony charges against this woman over 10 years ago. Apparently, she embezzled a great deal of money from their company (this is a law firm where she worked as a paralegal), and just as they were starting to suspect her she quits her job. A year and a half goes by while they're working on building a criminal case against her, when suddenly a lot of forged checks for one of their clients start coming in. The woman stole a lot of blank business checks for a firm that was represented by her employers and started cashing these checks for quite a bit of money. Felony charges were finally filed (Embezzlement, Forgery, Grand Theft), but she plea bargained down to a plea of guilty for the single Grand Theft charge. She was ordered to pay back 2/3's of what she stole (roughly $67,000), given 6 months electronic monitoring, and 3 years of probation. Her former employers also researched her background a little better and realized that the Stanford University education she claimed on her resume to their firm was false (she had never even attended a single class on campus). So, 10 years ago she was ordered to start making restitution payments, but instead she dropped out of sight after paying only about $2,700. This is where we come back to the issue of voiding my Father's marriage to this woman...
She meets my Father. Moves in with him within a week. Suddenly new rules regarding visiting our Father come into play (call before coming over, don't show up unexpectedly, etc...), and before a year is up our Dad suddenly starts pushing away from his sons (I don't want to hang out with that son - he's crooked. My new girlfriend doesn't like that son coming around anymore because he's crude and has lousy manners. Until this grandson learns how to behave, I don't want him coming around anymore.) We guarantee that our Dad did not know about his future wife's criminal past, her bogus college education, or the huge restitution she had to pay back (which she couldn't even wipe out by going bankrupt). Unfortunately, as IAAL said earlier in this thread - it was up to our Dad to claim fraud and anull his marriage. Now that he's dead there's just no way we'd be able to prove this.
However, because we just learned of her criminal past we're starting to take a real close look at the circumstances surrounding this woman's marriage to our father. She did falsify her birthdate on the application for marriage. We don't think she did this to present herself as a younger woman to our Father, but to throw off any background checks which may be looking for her specific name to her specific birthdate.
If we learn that the date and place of her divorce on the application is also false, along with the background we now have on this woman, wouldn't this start to make a compelling case towards voiding this woman's marriage to our Father?
(Wow that took a long time to circle around and get to the question!)