I could write a dissertation on why to buy and hold in the BA is a strong play, but if you do a little research there are graphs floating around here on BP that go back approx. 30 years showing the effects of the various downturns in the market. 

I won't get into the specific math here cause its nerdy and not necessary, but I spent some time 'fitting a curve' to our data and here is what I came up with: Here's what is going on in this graph: The labels on the X-axis are the median rent for a given city (I am purposely omitting the city names here). 

You can search any state, city, metro, zipcode, etc and find a bunch of useful information on cool interactive graphs.

Looking for a sexy brochure template with pictures, data, and maybe some colorful graphs that I can export as a PDF and send to investors for 10+ unit apartment buildings.

We cover materials, then pay for labor at the end or at periodic milestones.

Then you should pay each following installment after agreed milestones - and make sure the work is getting done. 

What through me off is I saw a video where a property was being analyzed and the person mention the on the graph the loan pay down created equity and also cash flow increased so I thought that cash flow increased due to the loan pay down

I do my own design.First I rip everything out demo.Then I measure.Then I put it on graph paper (Khan academy has some great videos.

For term-based work (construction, renovations, additions, etc.) set completion dates, paid milestones, and if you can afford it, bonuses awarded for completing work ahead of schedule (with specific wording to make sure they complete work up to code, quality, etc.)3.)

Also, the project could actually take longer than the 1st house if the contractor adds contingency days to the schedule to mitigate the risk of damages  Good luckAs far as the payments go, there are 2 standard billing practices, percentage of completion which is by far the most common or you include drawers in the construction schedule based on completion on milestones.