Honestly, I would advise against this.
If she is a Fila, understand the breed is bred for aversion to stangers. In Brazil, the temp is described as "Orjenza" which translates as hatred to strangers.
You may be very surprised when the dog reaches mental maturity and starts going off on strangers for no other reason that presence. This is perfectly natural for the Fila, and is a breed trait... And at 100 pounds plus easilly for most Filas, not an easy one for the average owner to live with.
The Fila is one of the only two breeds (Other being the Caucasian and other Ovcharkas) that is not touched by judges during conformation showings... A proper Fila would grab a judge for physical contact quick, and would be perfectly proper in ding so.
The dog may be very friendly as a pup... Most are. But in several months when "the circle closes" anybody not known to the dog is VERY unlikely to ever be accepted by the dog.
Not much use in a dog for protection that has to be put away every time somebody comes over.
I don't want to talk bad about the breed, but they are what they are, a very specialized animal bred for a special set of circumstances... That, for the most part, do NOT mold well to the modern Western version of how a dog should act.
And, for what it's worth, this is coming from somebody whom has been involved in working dogs all his life, owns a Caucasian Ovcharka (A breed very much in temp. comparable to the Fila) and knows how to handle and live with large aggresive animals.
I would urge you, at the very least, to contact original owner to find out where said animal was produced, and get in touch with breeder... Some people do breed for a softer temp, which I do not agree with... A Fila is not a Golden Retriever, and should not act as such.
These dogs, and many other of the "exotic" breeds, would frankly, be better left unknown.
Another "stranger avert" breed... Working my Caucasian Ovcharka's father, Balou of Caucasian Legends (RIP big guy)
