The family had been tricked or had something stolen from them and wanted to get it back and/or get revenge. I think it was probably a TV Movie, mid to late 80's from what I remember of the make up and styling.
I remember the mother had her blonde hair piled on top of her head, her eldest daughter was also blonde and wanted to disguise herself as a man to do the deceiving but her mother said there was no way she could fool anyone with the way she walked.
The middle daughter, the gambler, had dark hair. She really like taking baths and after the card game she'd dressed as a man for she went to her room and had one and the good guy walked in on her but thanks to her hat, false moustache and the bubbles he didn't realise she was a woman. I think they got together at the end of the film.
It was really cheesy but marvellous.