How many small pets are there?

Their is no limit to having small dogs you can have as many as you want.

There are some limits determined by where you live. If you live in an apartment, your landlord will likely limit the number of pets you can own on the premises. If you live in a subdivision there may be a rule set by the township limiting how many dogs you can own. Since this varies by apartment complex or subdivision, you will have to ask your landlord or consult your neighborhood council.