Hello Carl - you can submit the 2 deeds as one application but any registration fee is payable per deed/transaction so to speak so two separate fees payable for each. It's not for example one form AP1 and one fee if there are two separate deeds being registered
Note it's a fixed fee for each Deed and that fee includes up to three titles
The GOV.UK guidance re certifying a document can be relied upon
There are no identity requirements on submission of an application to register deeds of grant - see PG 67 for when such evidence is required -
Evidence of identity (PG67) - GOV.UK
See
Practice guide 62: easements - GOV.UK for guidance on the types of things you need to consider
Land registration is complex, designed to protect legal and financial interests in property. There can be significant consequences for any error. Please consider seeking legal representation. Before making an application without legal representation, it is important to
consider the benefits of using a conveyancer.