Probate property title deeds

We recently lost a close family friend. Who left her house as part of her estate. She chose me to be executor to carry out their final wishes, which I intend to do.
We have discovered that when her husband died 20 years old the house was left to her. However, the title deeds were changed to her name and are still in the deceased husbands name. 
I am now being told by our solicitor that we have to contact the husbands original executor to get probate for the house to carry out her last wishes. Does this mean the husbands original will is now the will to be followed and any beneficiaries from that will get the estate? 

Roy - we can't advise you on how inheritance/wills work so whether the deceased husband's will has to be followed or otherwise.
What we can advise you on is that if the property is still registered in his sole name then probate for him is required. If the named executor is not his wife then you will need them to deal with the property as appropriate. What's then appropriate is seomthing to seek legal advice on.