Based on my own understanding, your file being transferred to your local office might either mean something good or bad. I know of some folks whose applications were returned to the service centers while some got approved from local offices. 

In any case, you might wanna consider asking the same question at immigrationportal forum (I know, I almost sound like a spokesman but that forum is full of so many knowledgeable members and experts). 

Btw, what's the current processing time for the case related to a GC holder's spouse?