It's hard to imagine someone being deep enough to solo mine but green enough to pay off their mortgage. 

This one maybe? 28 days ago https://www.reddit.com/r/Bitcoin/comments/1ofqc7j/i_found_a_block_solo_mining/

grimtechnet

I believe the person that solo mined the latest one using self-hosted public pool verified it on reddit and posted his setup details, said what he plans to do with it, etc.

I cant get onto reddit so unfortunately can't provide a link. I think it was about a month ago.

bitcoin

Another solo Home Miner just mined a block

hasherstacker

I believe the person that solo mined the latest one using self-hosted public pool verified it on reddit and posted his setup details, said what he plans to do with it, etc. 

I cant get onto reddit so unfortunately can't provide a link. I think it was about a month ago.