Life forms in brown dwarf atmosphere Some of brown dwarfs generate the enought amount of heat to warm their atmosphere up to 300 K. This is a condition to liquid water and, possibly, organic life forms.

Is where are a some studies about life forms in BD atmosphere?
Although you might think that Y-dwarfs (brown dwarfs with temperatures $&lt;500$ K) might become cool enough to support liquid water. In fact that does not happen. As discussed by Burrows et al. (2003) and Morley et al. (2014), in Y-dwarf atmospheres, when the temperature becomes low enough for water to condense out of the gas phase ($&lt;375$K), it goes straight to water ice particles. 

Thus, although water vapour will condense  in clouds in a cold brown dwarf, it will be in the form of ice particles, and there is not expected to be liquid water in a brown dwarf atmosphere.