Quote Originally Posted by slevtov View Post
(1) Not to bark at, retreat, and cower in the corner from visitors entering the house/office
How is she with strangers outside of the house? She seems very uncomfortable with them in the house so your goal would be to let her know that people coming in are okay. I'd leash her and go a distance away from the door. Practice simple commands (like sit or down) and keep her busy and occupied on you. Have someone enter the house while you keep her attention on you. She's allowed to look but she's not allowed to react to the people coming in. If she does react, go further away from the door (or do a circle to get her attention back on you) and praise her when she's doing well. When she's doing well at a certain distance, move a little closer. But AS SOON as she feels uncomfortable, move further away again. It will take some time and patience.

If she's okay meeting people outside you could also take the dog outside on a leash and walk in the house with the stranger. Inside the house I'd have the stranger offer her a treat.

You really just want her to pair strange people with good experiences.

(2) Not to chase behind those visitors when they're leaving, pouncing and biting (playfully, I think) at their pants and coat?
The visitor's should respond with an "Acck!" or an "Ouch!" while they stop moving, turn their back and cross their arms ignoring her completely. When she stops (which she will, only moving people are fun to bite!) they should praise her.

And any ideas on getting same dog not to be scared of men, especially the one resident male (my husband)?
I would encourage your husband to just interact with her a lot. Have him do the feeding and the walking. In time she should become more comfortable around him.