Use the useRef hook to create an association of the form field/value to something React can use. Create a variable with useRef, then assign that variable to the form field's value. Easy-peasy.

useRefFormSubmission.js

import { useRef } from 'react';

function MyFunction() {
   const titleInputRef=useRef();
   const addressInputRef=useRef();
   
   function submitHandler(event){
       event.preventDefault();
       const enteredTitle = titleInputRef.current.value;
       const enteredAddress = addressInputRef.current.value;

       //dont forget basic error trapping!

       const myObjectToPassToServer = {
           title: {enteredTitle},
           address: {enteredAddress}
       }

       console.log(myObjectToPassToServer);
   }

   return (
       <form onSubmit={submitHandler}>
           <input type='text' required id='title' ref={titleInputRef} />
           <input type='text' required id='address' ref={addressInputRef} />
       </form>
   )
}