It is a hundred percent wrong. there are a lot of factors involved.

You decision should be based on many factors.

I have a single family home just outside of downtown Atlanta, GA (Oakland City) and it has an unfinished basement with an external entrance to the backyard.

Some agents hit the streets better in the Brooklyn, Queens and Bronx markets, and that will also be a determining factor for you. 

. * 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 place

I think that if I were a PM company I'd certainly want to be able to easily slice my data by neighborhood or other factors. 

@Gabriel Graumann has some great advice, but remember that time is a huge contributing factor, to even his success.

., if I rent for 185 days and use it for personal use for 10 days, 185/195 would be the rental expenses multiplier, but does that also factor into depreciation ?

Hi @Tony H. there are a lot of different factors in play here and so I think the answer... depends on what your goals are (although I don't think 1 is a great option - read on). 

Since this is an investment, I am always factoring RE taxes into my hold calculation but the risk of being in a high tax area is a bit worrisome as taxes have the propensity to raise faster than rents could keep up.