The debt I accrued in that year was using credit cards for personal things like gas, paying electric bills, grocery shopping, paying the insurance and taxes on the investments as well as small expenses with my kids.

I am interesting in increasing my buying power with a HELOC or Line of credit on my property. 

Example:  I just went through a potential 4 plex before I had the idea of building, did a walk through of the property, and the floors were sunk in, needed an entire new roof, electricity wiring was way off to where there was only one light in the corner of the room.

Labor force participation is much lower (lowest level in decades) and wages have been stagnant, adjusted for inflation, so fewer people working at the same rate of pay, reducing aggregate purchasing power... 5.  

My goal is by the age of 30 to be living rent free in one of my units, with enough residual income that i can do my electrical work as a "fun" job, instead of relying on it to support me.

i know a lot o you are not hands on with your properties, but I for one, am, the sewer lateral issue has been a big one for me, so i purchased a 50 foot USB drain camera on Ebay for $15 or $20 attach it to my electrical fish tape, and inspect the line as part of my rehab, or prior to purchasing if possible. it works for me.

Gross Scheduled Income: $12600Expenses (Maintenance, Management, Taxes, Insurance, Utilities (water & trash paid by owner), Landscaping, Common area electricity, CapEx, Vacancy, Internet for complex, security, etc.): $6400Debt Service (5.5%, 20yrs, 80% of cost): $3700Cashflow: $2500Annual COC: 17%I want to make sure I'm considering everything but also don't want to get stuck in analysis paralysis.

I am 24 years old and am currently attending college as a major in electrical and computer engineering.

Currently we are renting for $1100 plus electric and water, aprox $200.

Passive systems are better, though, because they avoid the continuous cost of electricity to run a fan and a loss of conditioned air caused by low pressure below the slab.