loyal loving watchdog

I am looking to rehome my mom's dog, Scrappy. 

My mom is too old to care for a dog so I told her I would find a home for him. he's middle aged & in a good health. he is microchipped, neutered and registered. he's a little food aggressive with the other five dogs my mom has but won't hurt them....he will just nudge them a bit to get their leftover food. lol. he uses the doggie door and does his business outside he's very loving & will always come up to lick you. he's a good guard dog too because he will bark at strangers until he knows it's okay. he weighs about 15-20 pounds and loves to go on walks but my mom hasn't walked him in years. he hardly sheds it all.

please help