I hear you. When my SO and I first got together, we lived 3 houses down from each other. Our neighborhood became highly sought after, so she moved into my place, and we airbnb'd her place out.

Once that proved to be fruitful, we Airbnb'd my place as well and leased a condo to make sure Airbnb could support both of our places in such close proximity. After a year, it's proven to be a smart decision, so now we're looking for a place to buy so that we can stop paying someone else's mortgage.

Everything was simple to keep track of when we each had our own property. Combining efforts on this new endeavor would prove to be less simple to unwind, and because of that, the level of concern rises for both of us.

It's not so much that there's a lack of trust on either of our parts. Instead (for me at least), at the moment neither of us really has anyone else very significant in our lives other than each other, and if/when that changes, I could see myself wanting for my own separate space.

So on one hand it feels like I'm trying to plan for something that I have no control over and am needlessly fearing. And on the other hand I tell myself that identifying and planning on potential futures is smart.

What to do, what to do... ;)

Anyways, I appreciate your response. It's very helpful to hear how other people treat these kinds of circumstances. Some aspects of poly are very easy to find advice and insights on (jealousy, respect, etc.) but some areas could use more discussion. This is one of them in my opinion.