Your question is not very clear? Buying a house on a contract, what does that mean? Do you currently own it or did you make a purchase contract, not close, the owner allowed you to go in and make improvements to it before you close on it and now you want to apply for a mortgage for $65K?
If you have title to it and your work is completed, go make an application for a mortgage directly to a bank (not a broker) only pay a credit report and appraisal fee first and see if you get approved for the amount that you want. If you have an attorney, you should seek their advice.... more
The best way to determing how the assessment was developed is to visit the assessors office in your local community. The Assessor will be able to show you how they arrived at their figure. It is alway a good idea to evaluate the file the assessor has on your home so that you can point out any errors such as over stated square footage or ammenities that you home may not actually have.... more