I ran into this exact problem. I adopted a cat from my mother and then I adopted a second because I was worried that it would be lonely. At the time I was working 9 hours a day. Then as I was working I found a kitten in the parking lot completely feral. Which was 50% more cat than I wanted.
How did it work out?
feral cat is still feral 7 years later. Hisses at other cats, easily spooked. Affectionate with me, hates people. I dunno how feral yours is, but semi-feral cats need a good place to hide and destress away from other cats. 90% of the time they all get along. Other 10% i gotta separate them.
