"or get a personal guarantee from my accountant."
I assume you mean your own personal guarantee.
Its a very tough old world out there and setting up in business is not for the faint hearted. Before you take on a big commitment, you need to seriously work out what you would do if it all went pear shaped. If you ( your company) take a lease on a property and you give a personal guarantee, if the venture does not work out, you will be personally liable for all rent, rates etc.,etc that the company would be liable for if it had not stopped trading.
mf