It allows tenants to increase their credit scores by an average of 60 points, and I provide it free of charge.I have over 600 adult tenants.

First impressions matter and presenting a property in its best light can attract potential buyers and increase its market value.

Florida's lack of state income tax makes it attractive for your parent LLC. 

A 5-bedroom will attract 2-family renters, so think about a bunk room. 

San Diego SFH rad average rent increase of $600/month last year (source Core Logic).  

The goal is to cash flow so I will rehab the property and increase the rent.

Combine that with rates that are near high for this century.  3 things could solve this 1) RE prices fall (that would be bad for me) 2) rents increase a lot without RE prices increasing similarly (this would be bad for tenants) 3) rates fall a lot.  

Vacation rentals are usually much nicer, are close proximity to attractions (beach, mountains, lake, theme park etc) and have nicer or more ammenities.

I recently purchased mortgage software and again wanted to streamline the process in selling or pooling the mortgages and attracting my own investors.

If your rental income increases faster than inflation, you will have the additional dollars you need to pay inflated prices.