Upper floor condo AC condensation pipe overflow leaks into lower unit.

[Milo Berg]

Hello,
I am looking for an attorney in the Houston area that can advise me on potential mold liability case. We own a second floor condo. The AC condensation pipe got clogged and overflowed. We have repaired the AC and sent people to inspect the first floor unit. The first floor unit is threatening us. How do I solve the problem?
Thanks.