The quantity of conforming rental properties is limited.

You are limited to commercial loans since legal entities are NOT eligible for conforming residential loans (the whole shifting Title back and forth as well as splitting the Title and mortgage ownership is just a bad idea / mishandling of your LLC). 

You have to do improvements that conform with the neighborhood.

Hi Account Closed,Try a local bank for your non conforming property.

SFR Room additions, extra bathroom additions, ADU conversions, permitting of existing non-conforming units.

However, if you're goal is to get the best rate and terms and you can qualify for a conforming Fannie/Freddie loan, I would have the property in my individual name.  

.• In a low-density cluster development if it conforms to development standards of the R-1 zoning district, and the development and use standards of the low-density cluster permit.ADUs are allowed:• In R-1, R-2, and R-M zoning districts on lots that have one single-family residence.â�¢ On lots with a single-family residence In Planned Development (PD) districts that are subject to R-1 standards and uses OR the ADU conforms to the development and use standards of the PD district.• On any lot with an existing single-family dwelling unit, where regardless of zoning, the lot has any of the following General Plan Land Use/Transportation designations:- Residential Neighborhood- Mixed-Use Neighborhood- Urban Village or Urban Residential- Transit Residential or Rural Residential- Downtown- Mixed-Use Commercial• On two-family (duplex) lots and on multifamily properties• In a low-density cluster development if it conforms to development standards of the R-1 zoning district, and the development and use standards of the low-density cluster permit.Minimum Lot Size3,000 square feetNo minimum lot sizeMinimum Setbacks from Rear and Side Property Lines0 feet for 1-story conversions and new construction.5 feet for second-story ADUs constructed above a garage or accessory structure.0 feet for 1-story conversions and new construction.4 feet for second-story ADUs constructed above a garage or accessory structure4 feet minimum rear and side setbacks required for detached ADU in multifamily developments.Maximum HeightFor detached ADUs:Single story – 18 feet maximumSecond story – 24 feet maximumAttached ADUs are subject to the height limits of the main home.Single-family properties - No change in height requirements.Multifamily properties - 16 feet maximum height for detached ADUs.Rear Yard CoverageArea covered by the ADU, accessory buildings, and accessory structures, except pools, shall not exceed forty percent (40%) of the rear yard.Area covered shall not exceed forty percent (40%) of the rear yard or up to 800 square feet, whichever is greater.Detached ADU Allowed LocationsRear yard only, at least 6 feet away from primary dwelling.May be attached to a detached garage or other existing accessory structure.Must meet minimum setbacks for an accessory building in accordance with Section 20.30.500.No changes except that ADUs that exceed forty percent (40%) of the rear yard must maintain minimum 4 foot side and rear setbacks.

I have a question re Freddie Mac and Fennie Mae Loans - Multi Family. or any other Conforming loans.I just had a chat to a mortgage broker who advised me that to Qualify for these loans the buyer must have minim equity equal or more to the loan amount.

This assumes it was written as a commercial loan as opposed to a conforming RE loan.

A future buyer can use get as many supplemental loans as they want as long as it conforms to the original loan docs (less than 75% LTV, greater than a 1.25x DSCR).To your last point, relationships are important across the board.