Negotiating with absentee owner

[Guillermo Oyola]

I'm in contact with the son of an absentee owner of a house next door to the one I'm currently flipping. House was used as a vacation home.  The son is wanting his dad to sell because his health is on the decline and cannot travel. I contacted the son and he is motivated to sell and said he can convince his dad but only if the price is right. We have come to a stand still and are about 30k apart on price. Any suggestions how to get things moving and come to an agreeable price?