he feels like he actually has a purpose. ♪..home ♪ >> now back to "strange inheritance." >> guillermo granizor, was wildly popular around the world. twenty-one years after granizo's death, his sons, ron and bob, are trying to sell the thousands of painted tiles they inherited from their dad. what makes you think there's a market for his unique style of ceramic tile art? >> we're trying to find out what the market is. neither one of us have sold art before. >> there is a big risk when you put artwork out on the market, and you don't know what you're doing. >> makayla van swoll is a fine art adviser who's helping ron and bob with their strange inheritance. >> you can burn an artwork, and you can definitely put your values at risk. >> granizo's private artwork was appraised for $300,000 20 years ago. but makayla tells the brothers that means little today. >> an appraisal is never fixed. it's just like the stock market. something could happen tomorrow, and poof, all of a sudden, it'll be highly valuable or not at all. it really depends on how the heirs decide to develop his estate. >> she urges r