Hi been studying RE as an investment option and trying to figure out the numbers.

Since then, I have become obsessed with studying/executing REI and I continue to consume information with every bit of my free time.

Study the rules.

New tenants need to be adequately screened, tenant requests and work orders must be addressed promptly, vacant units should be marketed and turned over quickly, and all common area amenities must be maintained.

The only way you could buy something without Money is to study Creative Financing with BP etc.

Here is generally how the strategy plays out: when a sponsor acquires a property, performs a cost segregation study, and takes the bonus election, the portion of the property's value that is allocated to land improvements gets depreciated 100% in the same calendar year the property was purchased.

Has anyone gone thru this- sold a converted rental to main residence while maintaining more than 1 property and provide some insight/experience? 

Study and emulate the top 1 and 2% of agents, and thats going to give you a better chance of success..

The other issue is maintaining an LLC requires time and costs.

The main home in which we will be living in is 110 years old and has been beautifully maintained.