I am not comfortable with him continuing to live in the building and am concerned about the safety of the other tenants as well as myself.

In the second case, those two offers will be extremely stressful.True hoarders see value in every possession they have, often valuing their stuff more than own health/safety/comfort. 

The better your pricing model is, the faster you can accurately, price out tapes, which results in faster bids.

Go direct to your local building and safety office (LADBS) and inquire with them.

In lower risk assets, investors are willing to pay more money for safety, so as they bid up the price, the cap rate is lower in the lower risk assets.Its helpful to think about it in terms of bonds.A 2 year treasury is lower risk than a 30 year treasury, so under normal conditions the yield on the 2 year bond is lower than a 30 year bond. 

I typically look for trends in total population, jobs, household income, unemployment rate, safety ratings, school data, general news, and fiscal policy / public initiatives. 

I found a single family home that was recently rehabbed and made into a 5 unit multi family home, i was wondering if thats legal on their end or should i go to the housing and safety to ask?

I'm in a full-blown learning mode, increasing my real estate investment IQ (books, podcasts, local meetings, taking people to lunch to pick their brain); walking that fine line between "get educated, be prepared, don't do something stupid and costly" and "don't over-analyze, just go."

My model is a little different in the sense that I treat the house more like a rental.

Pick a higher rate and a longer term and you get more stability and safety.6.