If you really want the property, so are going to have to sweeten the deal for her....

The two main options for doing so are called borrower paid single premium mortgage insurance and lender paid single premium. 

You need to have the answers to these basic questions before you can be an effective bird dog.BP is a good place to start your research, but so are sites like YouTube and Google.

Again, my opinion, or the LA/Orange county market is that the prices have been soaring and now you are hearing from multiple sources that "these prices can't just keep going up, people can't afford to live".  

The devastation left behind by Hurricane Harvey could result in 300,000 new mortgage delinquencies, with 160,000 borrowers becoming 90 days or more past due, according to a new forecast from Black Knight Financial Services (BKFS).This new forecast is based on a comparison to the 2005 damage left by Hurricane Katrina, when mortgage delinquencies in FEMA-designated disaster areas across Louisiana and Mississippi soared by 25 percentage points and peaked at over 34 percent.The areas impacted by Harvey have twice as many mortgage properties as those impacted by Katrina—Black Knight estimated there are 1.18 million mortgaged properties in Hurricane Harvey-related FEMA disaster areas, with $179 billion in unpaid mortgage balances.

Lot's of renters tend to have rough life experiences so are ultra sensitive to anything that is perceived as taking advantage of them.

You say "we" so are there multiple heirs?

The return may be smaller but so are the headaches.

So are those two houses worth the same for a buyer?

The drawbacks of doing so are that the lender may set terms that require you to live in the property for up to 1 year or longer as part of the loan agreement.As for financing 75%, I believe with an FHA loan, you can sometimes put down as little as 3-5% and have the rest financed.