Fourplex Follow Up Question

[Andrew Grams]

Hi, I sent a letter to a fourplex owner and have not heard back, but I have reason to believe they’re willing if not eager to sell. I’m wondering what the best short-term follow-up is... I found their landline phone number online, but I of course also have their home address (an hour from the property, but I’m willing to drive)... so, should I call, or door knock? It’s an 80-year old couple if that influences anyone’s answer... thanks for any help in the matter.