Guest houses, granny units and in-law quarters may be eligible. There are both government and private sector programs available all across California for those who need help with their down payment requirement.The California Senate passed a contentious bill to allow for undocumented immigrants to use the state's zerodown, zerointerest home "loans" program. In a rent-to-own agreement, you are locking in an agreed purchase price. What Is a California Rental Application? If you're looking to rent an apartment in California, buckle up. Consistent rental income in a slow housing market. Higher likelihood of a purchase. Owners of no more than two rental properties, comprising no more than four units, can request up to two months' rent. Annual Property Inspections.