@Sheikh Umer Anyone who owns an unpaid tax lien can force an auction, even if there are other unpaid liens. 

I strongly suspect your best move is to roll the TSP to a Traditional IRA and convert the IRA to a Roth, using non-retirement dollars to pay the income tax, even if you have to borrow the tax liability. 

Even though cash is coming out of your pocket, you are essentially exchanging your cash for a hard asset (the property).Some cash expenses can be deducted. 

Even if you fix the crack, if the window well is still filling with water, it's going to cause problems.So, you need to troubleshoot why the window well is filling with water, and fix that issue, in addition to the crack.The water in the window well is either rain falling in from above, or it's ground water rising up from below, or it's a leaking water main/sprinkler line or other plumbing...or, it could be all three of those things, or any combination.Good luck!

Even if you did not add endorsements for service line or sewer system replacement if the damage is part of a covered peril it's possible your insurance will cover some or all of it.What were the communications at sale regarding the water problem?

Some don't even think they really owe it.  

Me and others on this thread have been working in these markets for many years and have never even looked at the " data " your are posting.

We have yet to prove that there is even mold and even if it was severe enough to do remediation.

Do the PM if you really want, but recognize that doing so won't save you a penny and will distract from your investing efforts.Again, ask me how I know this...Haha yes I understand what you are saying, there will be a cost even if I do it. 

Hudson really an investors challenge is determining if how much cashflow they want vs cash.The inherited house demonstrates this:1) You didn't mention the mortgage PITI, but assuming it's low, you should cashflow well and even more if you have tenants pay the mortgage off over time.2) You could also do a cashout refinance, up to an amount that allows the rent to comfortably cover, and use the cash for further investments or personal use.