Otherwise if buyer fails to pay, seller has to incur legal expenses either to take back their ownership through deed or to assert a claim against buyers other assets (if there are any). 

She claims there is rain in the forecast for the next 5 days and also that it is too dangerous to drive.

I know this statement isn't regarding Maryland, but in Florida, the landlord must deliver written notice of intent to claim monies from the deposit by certified mail to the tenant's last known address within 30 days from the vacate date upon termination of the lease.

Many times the owners can not be found or if they are they want nothing to do with it and in a lot of cases if found, I pay them for a quit claim.

You can file a complaint with TREC, file a complaint with her managing broker, or file a claim with her errors and omissions insurance.

And this is going to get really murky, because the owner claims that he had a long-term tenant, and that tenant was then doing the rental arbitrage deal.  

If nobody redeems during that lawsuit, and nobody with redemption rights demands a public auction, then the judge will foreclose your liens, quiet title in you, order the clerk of the court to issue a deed to you, and you will own the property, free and clear of any liens or claims.

I do not want to hear unfounded illegal claims - unfounded breach claims - unfounded unethical claims - or anything else. 

He did a quit claim deed to me.

After a tenant has been evicted in Washington County, MD, and there is still an outstanding balance even after applying the tenant’s security deposit, are my only options for collection limited to small claims court and utilizing a collection agency?