What is real estate return when you add on rents? 

I have a 4 bedroom house for rent and its 1 level all tile.  

Appraisers will take into account the amount of rents and also the local cap rate when determining value.  

It currently rents out to tenants.What’s the earliest I take out the equity and invest again?

They all are rented but one. 

I do appreciate that every REI property is different and have used many of the existing calculators to do the math, including Rent to Retirement (leaning towards using them) and that it is not easy to get instant thousands per month in cash flow.

I list on Zillow, primarily communicate with them over Zillow messages and then give our remote login code to enter the home. 2) Maintenance between tenants - This one will be tricky as I will have to transfer all utilities to my name and send multiple vendors to the house for getting the house rent ready.

A lot of buyers in the past couple years purchased with the intent to rent their homes on a short-term basis (Airbnb) which caused prices to shoot up and for one reason or another, a lot of these buyers are deciding to cash out which is creating a large inventory of homes in residential neighborhoods and putting downside pressure on home prices.We are definitely seeing home prices in residential neighborhoods coming down a lot and with the high level of inventory, there seems to be more room to come down.Home prices on acreage in the more affluent parts of Joshua Tree and Yucca Valley (south of the 62 Highway) are slower to come down.

Then ask about renting out the other side.  

I also thought about just taking out an FHA loan (since my wife and I both have 750 credit scores) and buying a house and renting out my mobile home to cover the mortgage.