Dan, my understanding was that the USDA/APHIS doesn't get involved with reptiles, the only time they may get involved is if you are also breeding and reselling rodents?
Currently, coldblooded animals, such as snakes and alligators are exempt from coverage under the act.
This of course doesn't say that there are no regulations at the state or local level...that you would have to check into. I believe the term most commonly used is "hobby breeder", as opposed to "hobby business", as that really is kind of an oxymoron.
And Wes is right.....I've never understood the whole "homeowners association" junk. Find someplace where the neighbors aren't encouraged to tell you what you can and can't do....and older houses are usually more well built IMO anyway.