Answers

There are exhaust fans that have a filter and move the air in the bathroom but do not vebt to the outside, this takes cae of the odor. To address the mold you can repaint the bathroom ceiling with a quality paint like Emerald from Sherwin Williams and add a mildew inhibitor to the paint. (it is a liquid that you add to the paint that stops mold from growing) We have used it several times in bathooms and our clients have never called us saying the mold is back. I would also highly recomend leaving the bathroom door open after you shower so that the steam does not stay in the bathoom.

The leak and mold are time sensitive. Mold can be hazardous to your health. Dealing with mold properly means removing the sheetock and insulation once the leak is fixed. Don't let anyone tell you they can seal it in place and paint ove it. It must be removed. The foundation work can get vey expensive if you wait too long so don't put that off too long.

Hope this helps.