I have 3 Yorkies...and 2 of them are the same age, 10 months old...We got Harley after our 15 yr old Yorkie passed lasted Oct...he was only 12 weeks when we got him...and Bella was 12 weeks when we got her, she is almost 3 yrs now...I feel that Bella helped alot in potty training and training in general with Harley...Than 2 months ago I added Ivy Lou, who at the time was 8 months old ,same age as Harley...and I haven't seen any drawbacks at all with having to pups, the same age...Hubby, Bella & I love our new kids...they play so well with each other.
I say go for it...its will be alot of work on your part, as far as potty training/training but, if your up to it..its well worth it...when your sitting and relaxing and watching your babies play, We love having 3

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