When looking at comps on realtor or zillow how accurate are the median neighborhood prices?

If you will have more than 80% of the ARV invested in the property, you will have to slice it differently and focus on CoC and RoE in order to make accurate comparisons.

Trying to find good professionals (in any field) based just on their website and online reviews is tough and very accurate at portraying what the are capable of.

I would like the responsibility of measuring on the installer as they should be able to do this more accurately. 

@Brad Haughton, its not a waste of time if i can get you accurate numbers and it allows you to make better calculations!

I just need estimates from experienced investors so I can get as accurate of a budget as possible before buying the property.

I just need estimates from experienced investors so I can get as accurate of a budget as possible before buying the property.

Is this accurate and the right way to amend existing home owners?

In general, the ones to avoid are the ones that: Don't allow financing or a finance contingency (it can be a good indication they are selling above market value) Don't allow for your own independent property inspection Are not realistic with their pro forma's (i.e. they don't include vacancy or maintenance projections or use unrealistically low vacancy factors) Require you to pay for any renovation upfront Sell only in cheap. low end neighborhoods Don't accurately represent the neighborhood/property classification Don't have consistent rehab standards for all properties Don't provide a scope of work for the property Can't provide references of repeat investors Require you to close before a tenant is in placeFeel free to contact me if you'd like any help.

Additionally those comps will sometimes have 'agent only' comments in the listings, that help you understand the story of it, thus giving you a clearer picture of the subject property and make you more accurate your analysis.