The recent discovery of the kagome metal AV3Sb5 (A=K,Rb,Cs) has uncovered an intriguing arena for exotic Fermi surface instabilities. Aside from charge density wave order, a multi-dome superconducting phase is found, with some indications to be of unconventional origin in terms of possible time reversal symmetry breaking and electronically mediated many-body instabilities. We find that the sublattice interference mechanism is necessary and sufficient to uncover the nature of unconventional particle-hole and particle-particle order in the V net kagome metals. With regard to the possible nature of unconventional pairing, we find a rich phase diagram including pair density wave order that depends on the range of the screened electronic interactions, the multi-orbital content, and the location of multiple van Hove singularities with respect to the Fermi level. For the single orbital Kagome Hubbard model, we identify a pair density order that does not break translation symmetry, but imposes an intra unit cell pattern as the pair density wave signature. It offers an opportunity to study pair density wave order within a controlled weak coupling limit.