For instance, if you purchased the property with a residential loan, do you have to swap to a commercial loan after rezoning? 

What I don't know is how to sell that skillset "swap".

I'd start swapping out the oldest ones immediately, as funds allow.

If I'm going with that idea, would it be reasonable to swap the garage door out with a glass window garage door?  

Could they swap?

Would love to connect and swap notes seeing as we're in the same market. 

Tax wise the best solution would be to swap it in to something you MIGHT want to live in someday.

Also, looking at the floorplan, the architects could've swapped the WIC and the bathroom and move the entrance slightly to the left.

In the meantime swap out your shower heads to lower flow 1.5-2.0 gpm and your faucet aerators to 1.0-1.5.

Having debts with large untapped equity doesn' make sense because that equity could only be accessed if you do sell/refi; but due to the large amount of debt, selling is way better.I would not even do HELOC, that's swapping debts.