Since I'm not an attorney I haven't got a clue, so someone, if you have time, please sort this out. 

If Joe Blow has changes to his title, say someone grants him an appurtenant easement, or a right of way for a driveway; or he enlarges his property what happens then?  If mortgage B is simply going to replace mortgage A, with no title work, I can see some large problems coming down the pike.  What if Joe Blow has intervening IRS or state tax liens, between mortgages A & B or, help us all, a tax taking, with foreclosure proceedings started.  Raise your hand if you think the IRS is going to sit quietly in the background, while Joe waltzes off with the proceeds from a new refinance. 

It is entirely probable, that due to my lack of legal training, I am misreading this & if so, please tell me; but I did mention  this article to a well known conveyancer this morning & he shuddered & it wasn't  from the cold.