This will all depend on how good of negotiator you are. 

Depends on the area.

Quote from @Paul Lucenti: It depends what you're looking for.

Depends on the actual deal I have seen 85/15 rarely 90/10 but keep in mind your primary home will have a second lien on it typically if your LTV is over 75%. 

Depending on your current rate or if the current loan is short term or long term.

***depending on how far the house is from the coast, you mayalso be required to have a separate Wind or Hurricane deductible.

Instead of paying down someone else’s mortgage, you’re setting yourself up for bigger and better deals down the road.Your first deal is going to depend on a lot of factors—how important is location?

Depending on how it is done and what guarantees the government offers and requires of the released entities, interest rates could move slightly higher.

Additionally, if your goal is to maximize personal financial benefits, consider profit distributions from the property-owning LLC, which may provide tax flexibility depending on your situation.By adhering to FMV, maintaining proper documentation, and structuring the lease agreement carefully, you can optimize tax benefits while staying compliant.This post does not create a CPA-Client relationship.

@Jared Smith it depends is pretty spot on!!!