It sounds like Podio and Centriq will complement each other. 

and to understand how they fit together in your toolbox, as none will give you everything (e.g, insurance is required and it will cover you for many situations, but not always; asset protection (LLC) is litigation insurance and complements regular insurance, by minimizing the target and making it unappealing).If you are a new investor, probably you will not have a lot of assets and/or equity to worry about (but even that is relative and subjective to each person tolerance to risk) so I would not worry about that till you pass that risk threshold (in my opinion 100K+ in equity, maybe 50K if you are really risk adverse).

Go too fast and you increase your risks.Alternatively, David has built a reputation and can leverage his brand to buy multi-family/commercial deals with other people's money -- a great complement to his existing portfolio. 

Choose a retaining wall that complements your stairs, try to repeat the color, texture, shape and/or material used so they match.I don't hate the trees but maybe theres a reason they need to go?

What is a really nice unit, the newest tenant complemented us on the best shape they saw, but the reality is we dropped our price from 535, rented 18 months ago, to 465 now on an all tile, clean little 2-bedroom unit.One year lease, really nice good tenants who we believe will take care of the place and pay on time.We dropped it low and fast as we are going into December, and December is not a good month to rent except to the evicted, and after Xmas doesn't pick up till mid-January.Thats a 13% drop in rent but had only three weeks empty and avoided the dreaded three-four month empty draw.As far as a price war, we couldn't care less.

Abdenour's was a nice complement to the inquiry of what to use to calculate.

If you have the business and finance knowledge and expertise, what are key roles that will complement you?

Currently reading Set for Life and @Scott Trench talks a lot about finding job opportunities that complement your investing goals.Perfect example is the real estate agent who is also an investor.

I see them as totally different but things that can complement each other. 

I also complemented this with Google ads for those who visit my website.I ended up getting a call on the 20th.