Reach out to @Joe Mueller he is an investor and started Investors Title Services LLC and they specialize in investor closings at reduced fees, although I used them for all my closings and save money on every one of them. 

Use that money for investments that yield 8-10% returns rather than paying down the debt that's costing you 4-5%Focus on reducing that debt payment or increasing your income (no brainer but had to say it)Have a lender determine your buying power. 

Buy a little lower, rehab a little more and refinance to reduce the equity trapped in the property. 

It might be a way to significantly reduce your investment if your only interest is billboards. 

The only option offered was to reduce the sales price, and I want to make sure I get my buyer all that he can on the closing.Thanks again!

And we worked with the living tenant (his spouse), giving her reduced rent for a period of time.

Increase your price, then ask for that price increase back as a seller subsidy can reduce your out of pocket expenses. 

I encourage him to invest in a multi-family home because he can house hack and live for free or reduced rent, and kickstart his investment career.

The risk substantially increased given that we are approaching the end of the US business cycle and most importantly when China began reducing foreign capital outflows of their citizens into assets, especially Real Estate really began to tighten in late 2018.

If it were me, I would ask for a credit at closing, versus reduced purchase price.