You can require the animal is spayed or neutered, unless a Vet states it is medically contraindicated.In addition, you can provide a sample "Accommodation Request" form that specifically states the two questions you can ask, and requires verifiable signature from a local Doctor, Social Worker, or other professional.

Creating a new series takes a few minutes on the computer and a couple of signatures.

At the bottom put a couple of signature lines for you and the seller. 

Electronic signatures on a lease are a really bad idea!

See who is posting a lot and click on the links in their signature for more resources. 

I believe the bill is still awaiting signature by the governor. 

The new PM contacted them, and the Corp office required them to send in a fax w/signature to answer any questions.

Even with both signatures, the contract isn't valid until it's delivered to all parties.

If you see a post you enjoy check out the persons signature.

There is a link to my website in my signature.