These loans can have principal pay down or interest only or lump sum at the end of the term.

The condition however has deteriorated and it's a very old house, I believe it to be worth closer to $700K at the moment.A large and well known mortgage servicer was assigned to us, and they currently have the outstanding principal at $651K, but when I recently requested a pay off quote it came out to just about the same figure as what the house is worth, so, no equity.My mother is 80 years old and English is not her first language. 

Marvin There are so many things to consider, the way I will go about it will be by acquiring a debt weapon, home equity line of credit maybe for 20,000 and use that to pay down your principal there are some good youtube videos that will explain how to pay down your mortgage faster and save thousands of dollars in interest, but you need to have at least $500 of cash flow each month for that to work or use that to pay of a car payment faster anything that will increase your debt to income ratio so you can start saving more money each month cut down your monthly bills pay off all credit cards anyway you can i will try to get out of any car payments sell the cars buy a use one before selling the house, rent a room is a big house. obviously like i said lots of things to think about do you have kids so maybe a roommate wont work and your finances with out looking at them is hard to plan but I will try to make that house the investment get created if you have good credit that’s exactly how i started i hustle pay down my principal using the HELOC technique and when my equity become more because of lowering the principal I call my lender and increase my HELOC amount to the point that i was able to buy a house cash using the HELOC my HELOC became my checking account and i was paycheck parking all my income in the heloc is hard to explain what i did in a text but i hope this help you in getting created and into looking at more information before you sell or selling is the best way to go about it.

That's the first principal element of a quality cost segregation study. https://www.irs.gov/businesses/cost-segregation-audit-technique-guide-chapter-4-principal-elements-of-a-quality-cost-segregation-study-and-reportA "mini" cost seg is basically a residual estimation, which is cautioned against by the IRS because it is generally inaccurate.

If you were you make $200/month in net cash flow, this is $2400/yr cash return on your $30k of equity, which is an 8% return (2.4k/30k), plus any tax benefits, appreciation, & principal paydown on the loan.

Need to go through it again but this is a potential option that may work.I'm thinking do a master lease with an option to purchase and 100% of the rents going toward the principal of the purchase or something similar.

We live below our means, and send extra to the principal to get it paid down quickly so we have more buying power.

Rentals conducted as “net leases” (the lessee is responsible for all lease expenses, including taxes, insurance, rent, operating expenses, any mortgage interest/principal payments, etc.), however, generally do not qualify as a trade or business.If Non-recourse:No debt discharge income results from a foreclosure or deed-in-lieu transaction involving only nonrecourse debt.

I note that you asked specifically about “cash-flows”, which has multiple components each treated differently for tax purposes.In general, you can start with NOI, next you have debt service and cap ex, which can get you to cash-flows.The interest portion of your debt service is tax deductible (possible subject to limitations) and the principal portion is not because you get basis in the asset for the loan principal, which generates a depreciation deduction.Similarly, cap ex is generally not deductible currently but the expenditure is capitalized and depreciated, similar to the initial basis in the asset.In summary, you have cash and non-cash tax items that cause your taxable income to differ from your cash-flows and taxable income * tax rate determines your tax liability.

If you can meet the numbers you have presented then you have a good chance of making it work.The PMI amount is in addition to PITI (Principal, Interest, Tax, Insurance) payment.