Delaware LLC is fine. The reason we prefer LLCs is most of our deals are here in California where the ‘single-action rule’ can apply. If you lend to an individual or trust and take real property as collateral, the Bank may only be able to go after one or the other (borrower or collateral) if default occurs. Typically, the real property is held in an LLC and the individual or trust provides a personal guaranty of the loan to the LLC.
I can’t speak to lending against SFRs…there are much more consumer protection regulations in that arena, so our group sticks to 5+ multi-family financing (as well as all other types of commercial property and business lending). We have a traditional mortgage group that does SFR financing for primary residences and rentals.