I planned to open a gym in partnership with a man whose parents owned some business units in a large warehouse. I started to convert the unit, but he changed his mind and has begun to remove all the fittings I’ve installed.
If you wish to remain in the business unit it’s possible you will be able to force the landlords to let you stay, but it will depend very much on the authority your partner had to give you the keys. You can’t force him to put any money into the business in the absence of a specific agreement; your only hope is to recover from him some of the losses you have incurred as the result of his undertakings. You will need to discuss the matter in more detail with a solicitor to find out if this is possible.