You have serious potential problems. You dont play around with a mortgage loan. Being a high principal loan, it will get high lendor scrutiiny. Being secured by the property, default can lead to your loss of the property. They have substantial clout to collect unpaid debt.
I would do whatever I could to avoid a charge-off by the lendor. A charge off on a CC is a major derog, but a CO on a mortgage is extreme.. You can almost bet that if they charge it off, then referral for collection of such a high balance loan wont be far behind.
As for immediate impact on hubbies national security clearance, a lot depends on his level of clearance. if his clearance is only at the Condifentail level, then it may be a while before any reinvestigation is done, and it wont be a total personal reinvestigation. Secret levels of clearance normally do a thorough reinvestigation at least once every five years. If his clearance level is Top Secret, reinvenstigations will occur more frequently, and will be much more thorough. He should talk to the designated security officer at his place of employment to determine the time and depth of any impending reinvestigation. That is a DOD determintion based on their evaluation of the site of the employers industrial security clearance with DOD..
Even the most cursory of national security reinvestigations will routinely involve the permissible pulling of his credit report. More extensive reinvestigations, under employment contract with the contractor, will most likely also give them the right to request your CR. If you refuse, then it couild result in a revocation of the clearance.
