proposal writer

Looking for a proposal letter giving to the investor mortgage broker to funding 100% funding base on the contract of the purchase of the properties with the condition 90 day the price of the to sell the house with the benefit of 5% return. after 90 days the if we can not sell the house the contract is void and the investor will have the benefit of the house increase as the market increase
this is benefit in both the investor/broker who willing to fund 100% without risk due to the the title with their name and we only have one condition to sell their house within 90 day that all