Quote from @Kevin Sobilo: @Mike Auerbach, or simply buy the replacement property BEFORE selling your existing property.

I haven’t had anyone tell me there was damage and also offer to pay to replace the door.  

A few keystones to frame your decision:1) Identify the taxpayer.In a typical syndication, the LLC/LP (taxed as a partnership) is the seller, so that same entity must acquire the replacement property to keep 1031 eligibility.

Some builders offer modern ranch or simple two- to three-bedroom layouts that can come in well under $250k, especially if you keep finishes modest.

The truth is, most of us don’t want to replace the human side of the business — we want to take the friction out of the repetitive stuff so we can actually spend more time on the relationship side.For investors managing multiple properties, one of the biggest areas I’ve seen is tenant communication.

DSTs are simpler for most exchangers because the trustee handles operations and, if the structure follows the standard guardrails, the IRS treats your interest as real estate for 1031 purposes.The process mechanics are the same as any 1031: line up a qualified intermediary before your sale closes, don’t touch the proceeds, identify your replacement(s) in writing within 45 days, and close within 180 days.

What is the best, cash value VS replacement cost, in this situation?

The most frequent and expensive issues include failing septic systems, outdated electrical infrastructure (especially 30-amp service that can’t support modern RVs), and inconsistent water pressure.

Depends on what you mean by long run but once you start talking in terms of decades there are no savings: capex exists whether you're replacing an HVAC system today or 12 years from now.

The reality: not every leak needs a $3k+ mold remediation crew.If the plumber already opened up the ceiling, fixed the source, and you can see there’s no active mold, then the main thing is to remove all wet/damaged material, dry it thoroughly, and replace it.