If the owner cannot deliver possession to the property at closing then a seller is usually in breach.  

It rented one week after I took possession.#11 I am upgrading the flooring in the add-on Den from carpet to Laminate Wood, and interior paint.  

Is this a popular strategy, trying to buy a tax lien/cert with some intent to skip over the mandated tax sale timeline and gain possession of the property?  

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Now that I have possession again, am I able to deduct anything from the security deposit for his misdeed?

Now granted, I've heard two circumstances here:Circumstance A: Create an LLC to use on the contracts so as to limit any personal liability.Circumstance B: No need to create an LLC as wholesalers typically do not hold any property or possessions long enough for a suit to incur.

They took him to court and have now taken possession of the unit back, per court order.

He was renting a house and a notice (I think from the bank) was put on his door that the house had been foreclosed on and the bank was taking possession as of X date. 

Make sure the delayed possession is clear.

She retains ownership, he makes payments and gets possession.