My aunt has a good job but needs to move in with my other aunt because she(other aunt) is having medical problems.

There are higher yields that can be had from notes other than mortgages, risk and reward need to be understood but auto loans, financing receivables, lease financing and even medical accounts are profitable.

Also, if the first girl does not have good credit (she told us this from the beginning due to medical bills), should we make her pay an extra deposit, if so how much more is normal?

My wife has a degree in the medical field but only spent a short amount of time in the workforce before devoting her time to raising our child.

Definitely have them sign what they claim."

A tax lien is a legal claim against your property to secure payment of the taxes you owe.

As agent claims it will be held in agency escrow account before funds are forwarded to me. minus the agent 1 month commission fee.  

@Julie Meche Out of town iinvesting is good but there's a primary prerequsite for its success: you must have booths on ground, credible people to work with.I must advise that you must be very very careful....most of the people who claim to be turnkey providers are mere marketers......I am speaking from personal experience and so you will need to do your independent research to distil this.

The dreaded but oh so real Medi-Cal debt.  

@Sean RogersI do not have an umbrella policy myself at this point but it is my understanding that it is a separate policy from the insurance on the home (not mortgage) and it is assigned to your LLC to cover any claims that may arise for any reason.