Question: Justin James has just been informed by a finance company that he can access a line of credit of no more than $28,000 based upon the equity value in his home. James still owes $105,000 on a first mortgage against his home and $25,000 on a second mortgage against the home, which was incurred last year to repair the roof and driveway. If the appraised value of James's residence is $197,500, what percentage of the home's estimated market value is the lender using to determine James's maximum available line of credit?