I have recently started writing down addresses of run down or abandoned properties that I would like to purchase, but I only have the owner's name.

Is this purchase on the MLS or through a turnkey company? 

Of course, every owner's situation is unique and factors like the legal entity involved, purchase date, adequate passive income that can be offset with the cost segregation study, etc., will need to be considered.

I sunk a large amount of capitol into these when I purchased them just to make sure they were nice. 

To add to @Ashish Acharya, I would recommend using your retirement funds for notes that earn a nice interest rate, if you're into self directing.Given that you want to purchase a short term rental, I'd highly recommend not doing this within an IRA/401k. 

I'll bet if you take this strategy on a forum that consists of accredited investors or qualified purchasers, you'd get laughed out immediately.

Purchase price: $839,000 Cash invested: $83,900Bought an up/down duplex 4 blocks south of Sloan Lake.

Since you purchased your primary recently and in Houston, I personally am bearish on your appreciation potential.

I have purchased an off-market property from an investor who now wants to sell the rest of his portfolio.

Purchase price: $125,000 Cash invested: $75,000 Sale price: $248,000 Decent fix and flip completed in 2024.