Real estate investing is typically hard and risky and requires a significant amount of management to cash flow and increase its value.

That being said, we did get lucky because we had a bump of the post-COVID crazy appreciation, but we owned our home for 2 years and it increased in value by 33%.

I feel like I can't get a true picture of my investments if I can't calculate what I'm doing to my equity and my increase in expenses for closing costs if I can't factor in the cash-out refi's - unless I don't need to. 

In my area when their lease is up you would give them notice to vacate or the rent increase.

The buyer may want to reduce the down payment required to buy a property, preserve capital, increase yield, reduce payment on the loan for a period of time.How does it benefit the owner to carry the loan?

I am really excited meet like minded individuals in this community whose goals are to increase their wealth and add value to the market place.

There are a few answers, the two most simple are (1) transactional funding and (2) options.  

The extra bedroom May increase interest in the property, but when people actually walk through the house and see how small the room is and that they will have to go to the garage to do laundry I do not believe it would help the sale in most cases. 

Your idea seems simple.

Should I put my trust in sophisticated tools like Air-DNA, or keep it simple with Excel and Airbnb data?