how to make multiple offers

[Mario T.]

I'm just starting out as a wholesaler and have made just one offer to a couple different sellers.  None have panned out.  The sellers would just say they would think about it and never get back to me.

I have read that giving people options (making more than one offer) is the best way to make them agree to a decision and close on a deal.  HOW do i do that as a wholesaler?  For example.... a couple days ago i was talking to a seller in front of his property after inspecting it, i made my offer

ARV: $115-120k (he wanted $75k)

Repair cost:  $15-20k

Nothing was owned on property other than $17k HELOC

My initial offer was $55k, he said $65, i countered with $58.  Then we agreed on $61k, but he need to talk to his brother, cause they were both on title.  He never called back.  

Maybe if i made more than just one offer, gave him an option. He would have been more inclined to make a more confident decision and close.  This type of thing has happened with my last two seller's i've talk to. 

What am i doing wrong? How can i fix this?