Noah's Plane
So, this is an idea that one night a plane transporting some animals has to dump the cargo and they land in the backyard of this banker who is hating his life. So, somehow the animals survive the crash, and he sets up a small zoo. He starts to offer it for free, and then he needs the money, so he starts charging for it. But, the community then starts to donate their money and time to help him out. But then, the corporate zoo starts to want him to shut down because he is drawing customers away from them. So, the corporate zoo gets an injunction on the community zoo, and there is a dramatic thing at the end where the community ends up granting him lands in return for the donation of the animals; and the city grants a liscence to the community zoo. Everyone is happy
Of course, there has to be a girl, so make her an outspoken vetrinarian who is, of course, sassy. Also, to make it more believable, he is watching his next door neighbor's house while they are on a 6 month vacation, so he uses their backyard space as well for the zoo.
Revision 1- the main character is a guy who was fired from his job as a banker, and is spending 8 months house sitting, along with his little brother who is taking a year off between high school and college, his aunt and uncle's house as they are taking a working holiday in New Zealand trying to figure out his next move. There is an old lady in the neighborhood whose daughter is taking care of her, and she is a veterinarian.