Well, that's no help! What a PITA! That puts you on shaky legal ground, unfortunately. I think two weeks is a pretty reasonable time frame, myself, but that depends on what the finding party did to try to find a rightful owner. If the animal was already scanned for a microchip, advertised in lost and founds, and reported to animal control, 2 weeks is definitely fair. If they just held onto the animal for 2 weeks and didn't do a darned thing...that's a dilemma. It does seem like it would depend.
And as far as condition of the animal goes--it's not a reliable indicator. Coated dogs like poodles and shih tzus, etc, go from looking like they're owned to looking like they've lived on the streets for years in about 2 days, in my experience. Similarly, a healthy, lean animal that's not used to finding food for itself can go from good condition to appearing starved in 3-4 days.
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