you would also need to get your solicitor to draft a rider to the contract of sale (its a page stapled to the back essentially) about them taking reasonable care of the place post exchange given how long they will be staying for and what happens if they fail to vacate when they are meant to - to include your abortive and associated costs etc..
you would also need to get your solicitor to draft a rider to the contract of sale (its a page stapled to the back essentially) about them taking reasonable care of the place post exchange given how long they will be staying for and what happens if they fail to vacate when they are meant to - to include your abortive and associated costs etc..