If it's leaking clear water, probably a bad door seal or a plugged cowl drain or a plugged AC evaporator condensation drain. or
If it's leaking engine coolant, probably a bad heater core.
On the passenger side? That's typically because of buildup on the evaporator coil for your conditioning.
you could have a heater core leaking or your windshield is leaking and the water is running down behind the dash and onto the floor.
Condensation from air conditioning?
Water can not leak from the rear main seal, only oil. Most likely there is a leaking freeze plug near the rear main seal dripping water onto it.
If it only weak in raining days then is your windshield...
more than likely the windshield is leaking and the water is running behind the dash onto the floor.
It could possibly be the heater core Check your heatting and a/c
Antifreeze leaking from the heater core.
Are you running the air conditioner? If the drain line is plugged, it will leak water (condensation) onto the passenger side floor.
Your question is interesting in that it asks about leaks 'onto' your condo, without stating that the water is leaking 'into' your condominium. Water dripping onto your condominium balcony/ roof line/ window pane and so forth is expected and normal so long as the waterproof integrity of your building envelope remains in place and there is no water intrusion. However, if water is leaking into your condominium, you must alert your association manager or resident manager or board and request that the issue addressed as soon as possible. Water leaks mean mold eventually, which can be major damage and which is often excluded by insurance coverage.
Sounds like the heater core is leaking its a big job probably best left to the professionals
your ac might be clogged or your draining hose is clogged. its in that area
The condensor drain tube is clogged. Find the drain line and unclogg it.