Lien on property - advise sought

[Riju Krishna]

I am unsure if this is the right forum for this post. Apologies if it isn't. I need some advise - 

I am currently in transaction (all contingencies removed) for a property. The final disclosure package showed a lien from the owner's soon to-be ex husband (apparently there is some divorce proceeding, and the soon to-be ex husband filed a case against the real estate/property). I brought this to the attention of my realtor who reached out to the title company. The title company then sent us an amended report with the lien removed. My concern is - Can the ex husband file a case against me once I have bought the property. I reached out to an attorney who said there is a possibility of him filing a case to null and void the transaction. Is that just a hypothetical (because anything can happen), or has anyone experienced something similar? Any advise is hugely appreciated.