More specifically I specialize in modular and manufactured homes, so my deals are a bit more like new construction or "demo and replace".Currently I have a 69 lot subdivision under contract that is ready for homes.

You have the old refrigerant and need to replace the whole unit at any time when it breaks.

That is the goal to keep as much of your money in play over and over but not necessary if you can replace that money with income wether from a job or your saved cash flow.

First, I thought that I'll have to call a  replacement windows and door service.

Replaced 3 roofs3. 

We do this prior to replacing the floor covering too, as we want the ozone to penetrate as deeply as possible throughout the space.4.

They will not work out as tenants and you will likely need to replace them.

I work full time in Retail and now want to start part time as a Real estate agent until it replaces my other job.  

This alone is what caught my attention. 2 years in, I began studying different investment strategies in the business from wholesalers, flippers, Rental properties, etc.I work full time in Retail and now want to start part time as a Real estate agent until it replaces my other job.

My goals in RE are to replace my existing income with passive income, and become a full time investor in the future.