I already applied with one lender and they pulled my credit. They told me not to apply with anyone else or my credit score would go down. Is that true or false?

With mortgages specifically, you’ll likely be applying for a home loan from multiple lenders so you can compare your offers. In this case, your credit won’t be dinged multiple times. With mortgages, you can get your credit report pulled by additional lenders with no further impact to your credit score as long as you submit additional applications within 45 days of your first credit check