Small business relief inheritance tax

My partner has a small business, he has recently been diagnosed with cancer and wants to put his house in better order.

We are looking to issue some extra shares and transferring a portion of them to me (we are not married) to meet the requirement of HMRC of owning shares in the company for 2 years or more to qualify for relief on inheritance tax, we are also thinking of giving our daughter (age 3) some shares too.

We both work for the company full time but I am about to branch out into a new business and we are thinking of creating a new Ltd to handle that side of the business as this may be more tax efficient with both of us being directors of the new company.

Would HMRC have a problem with the above?