Private rental-avoid due to mould

We lived here for 6 months. My partner felt extremely bad here even though there was no visible signs of mould. We were just starting to understand his illness. We eventually did a ERMI here from Envirobiomics and the score was 11.6. We decided to move after living here 6 months due to this. Private rental. There was farms around the house also with pesticide use going on and cows in the field right beside. There was also a big pylon a few metres from the house which caused EMF issues. It is an old cottage that was renovated. When we lived there we used non toxic products however unsure now of tenant since then