They certainly caused me to lose money, my buyer, and time, but are the liable for this loss legally? 

I really don't want to lose the property but I see what your saying.

Do you have any recommendations on selling without losing $18,000 in realator fees?

Sounds like you bought the place well before the rule of FHA loans never lose MIP.

@Matt Shields, right now 6700 new units are being built in South Baltimore alone, crime is down this year, and the only reason why Baltimore is losing people is because the biggest voucher program in Baltimore called MBQ is forcing all new voucher holders to rent in opportunity areas, ie towns outside the city in Baltimore County areas with low crime, low unemployment, ie really nice areas where houses sell for 300K. 

This is your protection to insure you do not lose a month having to find a new tenant when they bail at the last minute.

., and we risk losing the deal if we can't close.The rear deck isn't required for occupancy and neither is the fence, that's an option, thank you.

I do not want to lose this deal that's why I want to start looking for a private lender in Pennsylvania. but I have no idea where to start what should I be looking for.

@Mark C.You may not do either of the things you propose.You may not transact with your IRA or make contributions to a Roth IRA in excess of the allowable $5500 per year ($6500 if you are age 50 or older).If you have existing IRA funds, those could be setup so as to be able to invest in real estate.

The stuff you here about tax deeds being risky is BS from realtors because they are losing you as a client...