It can really vary; larger banks definitely take longer than a private mortgage specialist, as they follow their own rules, in addition to the laws.
It can also vary on local/state laws.
My mortgage specialist here in Las Vegas can have funds released within a 3 week period, when she hustles.
I can recommend that you contact different mortgage specialists in your area, and inquire directly from them.
I can help with any of your Las Vegas Real Estate needs or questions; feel free to contact me direct.
Mark D Fleysher, MBA, Broker, REALTOR
The Jack Conley Realty Group
C. 702-291-8186 F. 702-946-0843