Purchase price: $35,000 Cash invested: $15,000 Sale price: $80,000 3/2 SFR with shop sold in 2021.

You could force the seller to bring it up to code before the sale is complete as one of the contingencies of buying it, let them deal with it.

Purchase price: $58,500 Cash invested: $55,000 Sale price: $155,000 Contributors: Peter Vekselman Partner Driven and Carol Tarnowski teamed up for a transformative project on 14th St, Fond du Lac, WI.

If the sale is for $600K then you need to purchase $600K of replacement investment real estate. 

To me the value in diversification is that it helps nudge you to look for other opportunities and revenue streams where you might otherwise just be content to stay in your lane and then you'd never find anything new. 

If there is demand and the market supports a market for mobile homes, it could be an opportunity.

It could be a nice opportunity however I would be certain they will want you to make up the difference between $250,000 and whatever is left on the mortgage which btw in my opinion should be done with lender's knowledge and approval. 

Home went to tax sale county kept excess proceeds.

Examples might include areas in the Midwest, Southeast, or Sunbelt regions.Multifamily Properties: Consider duplexes, triplexes, or small apartment buildings to increase unit count and spread risk across multiple tenants.Short-Term Rentals: If you’re comfortable with the management requirements, STRs in vacation or business travel markets can offer significantly higher cash flow potential than traditional rentals.Value-Add Properties: Look for opportunities to buy undervalued properties where you can force appreciation through renovations or better management.Decision FrameworkRun the Numbers: Compare the projected cash flow, equity growth, and tax implications of selling versus holding with a refinance or HELOC.

I used Roofstock to sell one of my rental properties in TX as their sales commission is lower than going through traditional sales channels.