Then the buyer was paying closing costs, which I estimated around $11,000.

So we have 3 buckets in my mind - SFH sale (basic), developer sale for the size of land (new to me), business sale (home + business).The most value would be in selling home + business I believe but I have no idea how to market/find potential buyers for such a thing.

What trends or areas are you seeing emerge as the new buyer hotspots?

Urban areas like Austin still attract buyers for the lifestyle and tech-driven job market.I believe more buyers will lean towards the suburban areas because of interest rates and getting more for their money.

Most flippers fail miserably and never come on BiggerPockets.

Typically when I see failed Facebook ad accounts it’s due to improper implementation rather than the platform itself.

Basically, he negotiated with buyers to put down a larger deposit upfront, which he then used to fund part of the construction costs.

There is always the risk that after you do the repair, the the system fails quickly after that. 

I'd then put in another offer-same as before  but for $4500 less explaining that the deposit the realtor has because they failed to present the amendment to the seller is the seller's money and therefore you are offering $4500 less (because they will get that money). 

In a down market, sellers may be more willing to negotiate: Longer Escrow Periods: Provide buyers with more time to secure financing or sell another property.