As others have already said, owning horses is a lifestyle choice and an all time consuming hobby. If no-one in your family has shown any interest in horses, I would say don't do it.
They are expensive to keep - feed, hay, supplements, wormers, bedding, farrier, routine vaccinations, tack, rugs, insurance.....the list really is endless. Looking after them is a 24/7 365 days a year commitment.
Having a lie in or day off is rare, unless someone can step in to look after them for you (either as paid help or as a favour). Horses get ill at the drop of a hat. Colic, for instance, can be fatal. Would you recognise the early signs of this? Do you know what to look for in a lame horse?
Having liveries on your property would potentially bring another set of issues. Do you have enough land to accommodate x amount of horses, and enough to rotate and leave some pasture to rest for example? Would you be happy for owners to be on your property early in the morning and late at night, plus the hours in between?
You would also be liable for business rates. Your land would need to be maintained, along with fencing and water. Do you have enough room for liveries to store their feed, bedding and various other items? Is there enough space for them to park their vehicles? The inevitable 'muck heap' will also need disposing of on a regular basis. Many people say having liveries is not worth the hassle.
I don't want to put a damper on your idea, but please think long and hard about this. Horses can live a very long time, and even if they are retired from riding, the majority of expenses will remain. As many horsey people say, 'they are an expensive field ornament'.
You have been given a lot of sound advice from horsey people already, so please do take their advice very, very seriously.
However, if you are still unsure, post your question on here in The Tack Room under Pets. Or, look at the Forum on Horse and Hound. There are a lot of land owners in there, and they will offer you advice too.
Good luck with the move!