About Us Trust Our Respected Law Firm with Your Final Wishes For almost 75 years the Cadwallader Law Offices has been working/advising in matters of wills, power of attorney, trusts and estate administration. You can rely on our experience in wills, power of attorney, trusts, and estates, to guide you and your family in your time of need in Yardley, Pennsylvania. Our law firm will look at the asset, what it is worth, and how it is titled. We will look at where things need to go to accomplish objectives and ensure, as best we can, that those objectives are met.