Route from Hong Kong to Shenzhen

Hi,

1. I am now in Hong Kong, and if I will stay in Novotel SZ Bauhinia, is it right if I use MTR to Lok Ma Chau Station then go to Futian Checkpoint to use subway?

2. For traveling by subway in SZ, can I buy a single journey ticket, i.e. from Futian Check Point to Novotel and then to Window of the World vv? or should I buy i.e a daily pass/journey card?

Thank you so much..