For estate planning purposes, we want to change the title to a revocable trust where my husband and I are the trustees. will this have a negative tax implication for 1031 purposes if we want to sell these and purchase properties prior to my husband's passing?

It appears logical not to sell the primary residence once it's fully paid off, considering the associated taxes and fees.

I miss the thrill of converting a van, traveling in it and then selling it. 

A person can be selling a property with a NOI of $100k and ask $4m, the CAP rate will reflect that their expectations are too high (for an investor at least) and all the market factors, location, comps, fed rates, will put their expectations on a leash (or justify it). 

@Maryam Mostafa there's a lot of scammers here in Detroit selling OOS investors crappy S8 properties in Class D areas!

Sell your house.  

That's a starter home in 2024... you would have no issues selling.

Are you planning on selling? 

The sellers were motivated to sell and I was able to negotiate a price reduction.

I sell the entire Emerald and Forgotten Coasts, or as I like to say, "between the Colas" (Pensacola and Apalachicola).  99.9% of my clients buy remotely, and many of them don't come in person, even for closing.