Make use of tools like PropStream or Zillow’s market analysis feature to assess property values and rental potential.PS: Did you know that Indiana has one of the lowest property tax rates in the country, making it a relatively cash-flow-friendly market for new investors?

I would tell the seller to figure out themselves and NOT provide them any tax advice. 

Are you looking from a more traditional real estate perspective where you're trying to acquire an asset for long term preservation of wealth, tax advantages, to have guests help out with the mortgage payemnts, potentially have rents and home value increase in time with normal inflation, and are okay with the idea of paying some amount out of the pocket some (most?)

Here is a framework to think about how buying properties creates the most tax efficiency for you.The 6 levers of depreciation:Lever 1 - % of LandOne of the components of a property is land.Land is NOT DEDUCTIBLE, so low value land properties mean more tax deduction.A value of your overall purchase will be assigned to the land or lot.You receive no near-term tax benefits for buying land.For example - If you buy a $2 MM industrial building outside a rural town on 5 acres, the land value could be $5k an acre.

I'm looking into tax sale overages and found a few courses by Bob Diamond, Nick Fullmer, and Shawn Buige.

Hello BP Community,I finished a webinar on Tax Overages and the presenter is offering training for $1500. 

This is why I got into note investing - I spent 20+ years in commercial and residential real estate - then for my own portfolio looked at tax liens and realized there is not much creativity that can be had there, but if you have a creative math mind there is so much you can do with notes to be creative and as you mention create income, or wealth building. 

This means you can likely deduct the interest on your taxes because the loan is connected to your investment properties.

Is your DSCR ratio greater than 1-meaning are you cash flowing (according to the lender's criteria of mortgage, property taxes and insurance (and HOA) if applicable).

If your purchase price (always the largest expense) plus the rehab estimate (the second largest) total no more than 70% of the ARV, the remaining 30% must cover your HML charges, agent commission, property and hazard insurance, property taxes, title insurance, escrow, staging, all else, and your profit.