Supply companies or contractors that may do net 90 day accounts, hard money lenders or business loans that would do short term loans, etc etc etc.Thanks!

Its rate is variable with the market so the amount I keep for my “peace of mind” auto pay varies. so the loc become my parking lot for debt (secured leverage) that I'm paying down.

I am not sure how many of these property types (specifically quads) are in supply and SD being a competitive market am not sure if anyone has actually been able to cashflow positive on a property of this type?  

Among the factors you could consider if you're looking for appreciation:* Markets with strong net population growth (here are some Census data graphs of population by MSA)* Markets where incomes are increasing (personal income data by MSA)* Markets where there's limited new housing supply being created (you could compare monthly building permits by MSA to total households by MSA)Here's a full guide on how to analyze a market.

Finding tenants is very easy if you have the right variables working for you and to produce solid cash on cash returns!  

I recommend you do this each year to adjust for utility increases and other variables.

It does take time to get to know values and the supply and the demand in the area, just like any other area of real estate investing. 

Having variable income can make financing difficult.

It is a game of scale with an unlimited amount of variables.

Massive supply and demand economics which give them massive appreciation potential.