DP and I are considering selling both our properties and buying one together. Second time around for both us so don't want to get our fingers burned. I have £184k equity he has £80k. We will have to get a bigger mortgage than either of us have now. He is currently an employee of a small business but buying into it gradually and will become joint owner within 2 years with a partner. Fingers crossed its looking to be a great success but time will tell. He has to pay in £75k and if we buy together wants to use part of the mortgage money for this. I'm nervous as I will be jointly liable for this with no say in the business. To get the initial advice regarding this £75k being his sole responsibility do we see a FA or go straight to a solicitor?