Now my question is I don't want to end up paying property taxes for the Sq footage that doesn't exist.

You'll also want to talk to an attorney to find out what you can or cannot do to the property after you buy it, especially in a redemption period if one exists.

I am aware that the option  to consult with an attorney exists.

I do this because if you send emails to the wrong recipients (like the ones that don't exist anymore), then it affects your sender's reputation.

In PA, Special Warranty is probably the most common which guarantees the title against issues that came into existence during the seller's ownership.

An insurance broker explained this to me in the past as the law of  large numbers which suggests if a a carrier has significant enough exposure in a market the probability of claims arising will be more consistent with probabilities calculated in their underwriting than a when a smaller sample size were to exist.

Then I could start purchasing regular investment properties.Option B: Find an investment property first (higher interest rate) that pencils out while continuing to live in my condo, and then find another primary I could “trade-up” for with my condo, where I could eventually use it as LTROption C: Just focus on finding investment deals that pencil out at a higher interest rate with existing cash, and when I eventually move out of state, sell Condo.

an NDA agreement can exist between the two. or perhaps a consultant agreement so buyer do not cut the birddog guy.  

A safe way to exist in case of something like a fire.

A 7% guaranteed return on new debt is a lot different than a 3.5% guaranteed return on my existing debt.