We CAN do flooring, but we have a tile guy that we love and does a great job, so we defer to him. 

That's money that is not tax deferred, you'll have to pay taxes on each loan payment. 

If you want to harvest your Equity upon building it and defer those gains into something else you're definitely eligible after one year.

Last year, I had my student loans deferred because I had to stop working due to disability.

— people love to tell you what to do and how to do it* Job is to find out how much is on the table without making the other side walk away* Use a tone of deference — let the other side feel powerful and in control* People want to feel like they’ve gotten everything they can* If you were to agree right away, the seller will suddenly “feel” as though they could’ve got more — might back out or go sideways on you* Come in at 65% of where you want to end up.

There are no tax benefit when selling a stock while RE has the possibility to defer the gain taxwise.  

If you generate any gains or profits in a tax-deferred account as a result of active trade or a business you will end up owing UBIT.

Be careful not to put too much in tax deferred accounts.

Then you would be looking at a 1031 tax deferred exchange instead.Regarding your mortgage, you don't need to alert your lender, except to send them a change of address for billing/notices. 

1031 exchange would be your best method to defer any taxes however you limited time to re invest said profits (180 days).