What to expect(good, bad or netural) in Mars Mahadasha when Mars sits in 4th house (debiliated house in kal pursha kundli for Mars) but in its own sign Scorpio with 20 degrees in conjuction with Saturn?
Job loss happened in last 2 Mars antradashas (Sun & Mars and Moon and Mars).
For leo ascendant, mars is lord on 4th and 9th house and considered karak grah.
20 degree takes mars in ashlesha nakshatra (mercury).
Saturn is lord of 6th house and 7th house and sitting in scorpio ( enemy house).
If you are worried about job loss then you have to check 10th house.
I don't see any major difficulty in mars mahadasha knowing that it is Ruchak yog - panch mahapurush yog.