However their taxes assed value are all above $50,000.So my question is, can someone provide a step by said process on how to argue a lower tax amount .

Hello Erin,    Congratulations on your big step into Real Estate Investing!

I should have my Agile Certified Practitioner certification by the end of July.The next steps for me are to find my next deal and really what I consider my first deal as it will be purely from an investing standpoint.

Seems to keep valuations pretty fair or you can agree on another valuation method.

Congrats on taking the first step.

I'm looking for guidance to the steps to take BEFORE I buy to ensure that I would be able to do those additions.

Pick a certain percentage of yourTo answer you, we do already have some investment rentals that are doing fairly well (handed off to PMs now), we had used house-hacking methods to get these going and did fairly well.

Is this the exact same thing as simply signing a regular purchase and sales agreement with a note being the payment method upon sale, and again, moving her to 1st lien position?

You should definitely weigh vacation rental vs other methods. 

Sometimes when your in the situation its hard to take a step back and analyze adequately.