John Gianniosis
Get to know John Gianniosis
Licensed Real Estate Consultant
John Gianniosis is known as the Youth Mentor - Warrior Realtor inside the Las Vegas Valley.
John has served as a Big Brother since 2015 and is still serving.
John is also a CASA Mentor (Court Appointed Special Advocate) for abused, neglected, and troubled kids.
John has been licensed since 2008 with a background in food and beverage hospitality and is well-versed in speaking, selling, teaching, training, coaching, and consulting people personally...
SpeaksEnglish, Greek
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