Haha fair point, I hadn't considered the actual subdivider having a mortgage, too late to change now.
And agree that's my assumption as well. The main thing crossing my mind was I didn't know if the county (Austin County) might require you to like re-platt and connect the two properties because it would require a variance from the county subdivision regulations. And if they did, I don't know if that might result in a risk to the loan being called. Probably something I just have to test with the county and a local surveyor.