Communicate with your wholesaler if a challenge comes up prior to closing.  

If a comparable unit in the building is vacant or becomes vacant during the period of the notice terminating tenancy, then the notice must be rescinded.

This is my focus, and I intend to buy and hold, hopefully house-hacking the first one.I have been working on analyzing properties using the knowledge gained from BP, and am happy to say it's not as hard as I made it out to be prior to starting.  

Also looking at comps to compare sold prices for similiar properties.

There is sufficient equity at the numbers you shared to do so.When the owner of record (with the tax lien) sells the property, the tax lien will be satisfied from the proceeds of the sale from escrow, prior to the seller receiving any of the sale proceeds.

Figure out what the average rent is for a comparable property.

I sell a house that has underlying mortgage still on a land contract, which put me at risk for a due on sale trigger (understand the risks of note being called from many prior posts).2.  

What are the fees and penalties to pull out of a retirement account compared to the cost to pull the equity out of the home.

Hit me up if you wanna chat, compare notes or whatever.

The first bailed out prior to the appraisal.