The seller hasn’t responded to anyone after the deal close.

Closing costs - you will have to pay taxes/stamps etc. typically as a seller.4.

Tell them you want to get into investing and ask them if they know of anyone who might be interested in seller financing. 

As a license agen, you will have a fiduciary responsibility to tell sellers what their property is actually worth. 

After winning the bid I had to provide 5% of the price as earnest money within 1 day of the seller countersigning the contract.

When I started, I  submitted great deals to a corporate cash buyer,  they went behind my back and secure the deals with the sellers, after the  contracts expired.

I'm not familiar with your market, but here are some thoughts:750 Sq ft is small for a 3/1.Interior looks like a flip but it seems like it has been owned by the sellers for a long time...so maybe not.They have been trying to sell this property for 6 months and have reduced price. 

Leveraging our market connections, we identified the property’s potential and negotiated favorable terms directly with the seller, securing it at a highly competitive price.

The owner is open to seller finance for us.

It may be worth having an experienced professional helping you and you could always try to get the seller to pay your agent’s fees.