V.W.
Does your lender (whomever it is you are dealing with) KNOW that you used to do their job? Perhaps it would be worth it to "call them on the carpet" so to speak... and say outright: "Look, I know you think I am being annoying, but I was in residential lending myself for quite some time. Can you tell me why it is taking so long? What has changed in the industry that is causing the log-jam?"
I have to admit, I don't recall your other posts, so I have no idea what you background with residential lending is or how long it has been since you were involved with it. But just as a lay person who keeps up with the news, I would not be surprised to find that the government and its bureaucracy have implemented a mountain of new regulations to deal with the mortgage lending fiasco that contributed greatly to the housing collapse of the past several years. So, unless you are still active in the industry and fully up to date on any and all new laws relative to it, then ASK them specifically what has changed that is causing the hold up.
I find that many times people are reluctant to give much information, because it is confusing and of no value to the recipient and ends up a big waste of time for both parties unless the person gives 20 minutes of background to explain it. And they probably don't want to get drawn into a conversation like that. If they know that you KNOW all the background, then they might be more willing to explain. OR, you might find out that there IS no reason for it, and your complaints for taking too long are justified and you would do better to work with someone else.
Be smart about it. Clue them in that you KNOW what you are talking about, and you want to know what THEY are doing to move things along. Do it nicely, like you are commiserating with them, but put them on notice.