Quite the collection of animals at your place Purpledomino. Sounds like a little slice of heaven.
We are not trying to be pessimistic but most people will not tell you the bad points about a breed but at least you have the facts. We are not trying to sell you a dog we just want your choice to be informed. One more little fact giant breeds should not be spayed or neutered till they are about 18 months old, it has a lot to do with there growth. But after that spay or neuter.
Now with that said Mastiffs are the best dogs ever. The most loyal dog you will ever know.
A dog has so many friends because they wag their tails not their tongues.
R.I.P. Buddy 2002-2008 The best Mastiff ever.
Now owned by Clark the Crazy American Bulldog