FHA rates are actually lower than conventional right now even though there is a monthly mortgage insurance it’s not much in most cases.

Sharing our home a bit has been a small trade-off for living nearly mortgage-free while building wealth.

Not sure the final outcome, but I'm guessing that is a case where you think things are risk free, but I expect the purchaser was out significant legal fees that were not reimbursed and ended up not getting the property.I've always thought about this in the rare instance that a super nice and super valuable property goes to sale with a mortgage on it. 

You can take yourself out or severely set yourself back if things go awry.I've bounced around the investment mortgage industry for 5 years. 

The lender will need to be able to prove on paper that you can afford all those mortgages with your job income and the rental income that you have.

In some states it's better to write a full mortgage because the foreclosure timeline is short or because the municipality will not treat the buyer as having equitable title otherwise.

Mortgage lending is highly competitive, and there are many newbie loan officers that will bend over backwards to get you to pull a credit report and pay for an appraisal.

I’m not 100% sure if this is what you are asking, but if you put 10% down at purchase you probably still have about $360k on your mortgage.

Promissory notes in general, as they have no collateral, seem a bit higher risk, perhaps mortgage note investing which are backed by residential and sometimes even commercial real estate would be a safer alternative, and yet very lucrative, too,  8-12% yieldsFor extra returns, I put a small portion of my portfolio into BDCs, Business development companies, that specialize in loaning money to growing businesses which are too high risk to get loans from proper banks.

Although we’re not a local bank or credit union, we are independent mortgage brokers with experience in financing options that consider rental income rather than personal income.