Washington DC Condo Foreclosure question about condo lein

[Ray Slack]

Had a question.. I'm thinking about buying a washington DC condo at the foreclosure trustee auction.. It's a first mortgage foreclosure but there is a condo lien recorded after the 1st mortgage. 

I've read some places that I would be responsible for $1,000 of the condo lien and other places that the whole lien would be wiped out.  Anyone know for sure? 

Also are property taxes and condo fees pro-rated from the date of sale on DC properties?  I buy in Maryland all the time but realize DC may be different.

Thanks for your help