Typically, your local City/Village where the property sits can advise you on the necessary steps to take in order to receive the necessary "blessing" by the local municipalities to construct a home on the site. There are many preliminary infrastructure considerations to consider (i.e. electrical service, sewer lines, water, runoff, etc.) before the home can be built, all of which will require communication with the local municipality to determine IF a home can be built on that property, where...
First of all, this is not an unusual scenario. If an attorney was used for the closing, the assessment is typically reviewed to determine if there were any changes that may effect the parties in the contract stage, or at closing. In Illinois, where I practice, people over the age of 65 receive a Senior's Exemption in addition to a Homeowner's Exemption when calculating a taxbill. In addition, if household income is less than a certain amount, there is an additional Senior's Freeze Exemption...