Advice on sending out a mailer in two languages

[Brandon Cline]

Hi everybody, first time poster here. I've been flipping for a few years now and just found this site, wish I would of found it years ago. My question for those of you who have experience in identifying a potential property to purchase and sending a letter to the owner, is have you ever done it in two languages?  I live in California in a city where a large part of the population speaks Spanish.  I've had luck in the past knocking on doors, talking with the owners and leaving my information, but this particular property I'm interested in is a duplex with renters.  I've found out where the owners live and their names, but I'm not sure if they speak both English and Spanish.  I'm a little unsure how to proceed.  If I send a letter in just English and they're Spanish speakers then I'm not going to get anywhere.  Conversely, I don't want to be presumptive and write it in both languages and offend the owners just because their names are Hispanic.  Any dual language speaking owners out there have advice on what you would want to see?  

Thanks for the time!