Several factors can affect the approval of a partial interest mortgage, including the borrowers’ credit history and score, income verification, and financial capacity to meet mortgage repayments. Additionally, the specific terms of the co-ownership agreement, including the division of property shares and repayment responsibilities, can also influence the approval process.Several factors can affect the approval of a partial interest mortgage, including the borrowers’ credit history and score, income verification, and financial capacity to meet mortgage repayments. Additionally, the specific terms of the co-ownership agreement, including the division of property shares and repayment responsibilities, can also influence the approval process.