Whenever you get a recommendation from a buyer or seller, remember that it is just that: a recommendation. Choosing another lender will not void, cancel, or otherwise harm a deal. A bad lender can ruin a deal though, so choose carefully.
A lender cannot force you to use anyone otherwise there are Anti trust violations.
Neither can a Realtor force you to use a specific lender or a particular Title Company.
Such violations are punishable by law, associated with fines, and can also result in
Loss of license and jail time.
There are a lot of long-drawn answers out there to this one. Simply put; you hire any Realtor you want.
Good luck and I would love to apply for the job!
I always recommend at least two, usually three, and they are not always someone Ive personally used. Ive told people who NOT to use, according to my personal experience but one walks a tightrope when talking down about another company. For example, after actually working in their back room I wouldnt recommend anyone use a Wells known bank, if you catch my drift
That said, you have the right to work with any Lender and/or Realtor you choose.