Always determine your own property value "As-is" and "After Repaired".The standard formula is ARV times 70% - Repairs = MAO.MAO is the most you can sell it to a rehabber for. subtract your wholesale fee from the MAO and that is what you can offer the seller.

As far as insurance goes, I used a formula I obtained from BP forum; home value divided by 1000, multiply by 3.5...have no idea how they obtained this formula but it seemed to work out for my current insurance cost.

I think it is a winning formula, and after seeing the expansion of this particular company that has invested literally millions and millions of dollars into the property in the area, I'd say keep growing until you can't anymore.  

Can someone provide me with a formula or something to tell me if im over leveraged?

(I'm assuming there is a formula). 

Good comps are nearly irrefutable so if you have good comps and a decent lender to negotiate value using appraisers formulas for determining value you can almost always get the appraiser to come up or meet you near where "value," should be.This is where the science of appraisal meets the arts of persuasion. 

@Jonathan Emery I used this formula: Gross Operating Income - Operating Expenses - Debt Service = Cash flow@Jason V. would you use 10% across the board (Prop mgmt/Repairs/CapEx)?

What formula do cash buyers use to purchase property? 

Now, I'm not an unrealistic person and I know that not all formulas work the same for everyone, but I figure why not at least ask on BP to see if anyone has done this in the past and can offer some advice? 

I have a formula that can help me anywhere however risks and challenges remains same .