They could bri an extra set of clothes to swap in to and wash and dry their dirty clothes if you want that tested too. 

In my ideal system, you wouldn't be swapping - you would move to the back of the list after selling and the buyer would forfeit their current spot on the list.It doesn't seem to be prohibited by our guidelines but I'm looking for any examples of how this could work or not work.Thoughts?

The model still works, just try swapping out the numbers in my example.

This is very common and can be handled with a simple one-page lease addendum to add, delete, or swap out a tenant. 

If you try to swap the houses you own into the LLC you are going to have to pay for closing costs again.

And though it may seem like a tiny step, as @Leslie Anne Morris points out, swap out that key photo!

A lot of people use handyman types under the radar to set toilets and replace water fixtures, but if you're hiring legit plumbing and electrical companies, even something as easy as swapping all the plugs, switches, and a few light fixtures will cost you $1k.

This will be my first year digging into the tax strategies and have read a few BP books on the subject (tax strategies for the savvy REI, & Advanced tax strategies).Does anyone have any recommendations for CPA's if I find that my current one has to be swapped out for next year?

Do you think it would work to just swap out the glass with the solid material structurally (e.g. held in place by the frame)? 

Try to get the same pattern or color of linens, that way sheets and pillow covers can be swapped.