Excellent work and great return.

Excel has this build in NPV(discount_rate_per_period, periodic_cash_flows).

Here you should build an excel model, but one rule of thumb is that it should be less than 33% of your income.

@Marcia Maynard offers excellent advice... to which I would add (in light of a recent experience) that an "appropriate" shower curtain should mean a non-porous one.  

If you are able to self manage then I would use excel, but if cloud storage with minimal input from you is what you're looking for then I would pay someone to write a software based on the cloud system and you would be able to track everything.

I excel at finding those guys. 

Building a quality trustworthy team is not always simple and it takes work to maintain the team (even local takes work to maintain a quality team).As for buying your primary residence I have two considerations: 1) how long do you plan to live in the area 2) how are the long term appreciation outlook (in LA the long-term appreciation outlook historically has been excellent). 

Obviously, excellent credit is a MUST!

In fact I went 3 steps further and mapped out 4 scenarios in an Excel spreadsheet if anyone is interested.

I was iuyn Florida recently and visited the Habitat for Humanity outlet stores, they has excellent prices on both new and used items for houses.