Have the properties span the entire envelope you will be looking to buy (i.e. small, medium, large).

Find the highest spot on the floor then jack up the low areas to match it down in the basement/crawl using the adjustable columns. 2x6 floor joist shouldn't span more than 6' or so.

Many Zips around here span multiple neighborhoods/municipalities, and several school districts.

This real estate investor (the boy's father) found his real estate empire, which he poured blood, sweat and tears into over the span of two decades, wrapped up in the lawsuit. 

Remember you put no money in so your ROI is infinity.Ok now here's the KickerOver a ten year span You and the Investor split all profit 50/50Capital Investor                                                             You------                                                                                10K Fee36K                                                                                   36K 7200 per year over 10 years10K                                                                                   10K Principle reduction 2k Per year    20K                                                                                    20K  4k per year Tax Deductions30K                                                                                    30K 6% annual growth Rate over 10 YearsTotal 96K                                                                          Total 106KTotal Profit over 10 years 202KNow do this ten times and in 10 years you are a millionaire with cash flow.

The data is grouped by year and spans the last 10 years.

If you span to even areas such as Monrovia, la Canada, tujunga and also San Dimas along the 210 you may have a little more luck.

Finishes should last you in the 10 to 15 year range.Wood is an option and will be your cheapest but will need to be maintained over the years with a 10-15 year life span or before it rots out. 

One of my most exciting was purchasing, owning and flipping 5 condos in Oklahoma over 5 year span without ever physically seeing the properties or ever visiting the State of Oklahoma.

Congratulations Jeff Filali that is impressive in that short time span!