Need to buy more rentals! How to finance them?

[Greg Barber]

My wife and I have been buying rental properties for 20 years. We currently own 13 rental properties and have paid off all loans/mortgages including our primary residence.  Our goal has always been to bring in enough cash flow to cover ALL of our living expenses.  Unfortunately we are not quite there yet. We need to purchase at least 3 more rentals in the coming years.  I am a realtor and believe my income will not be as high as it has been for the past few years moving forward.  My question is, what is the best way to finance more rentals?  Should we do a conventional loan? Should we borrow against our primary residence or rental properties? Should we do a margin loan against our investments? Or should we sell 3 parcels of land we own and use that money to buy more rentals?  Any advice would be greatly appreciated. Thank you!