% rental income expect to keep

[Amy C.]

Hi,

What would you say the average percent of rental income will be retained?  We will be living outside of the US for at least part of the year, so I am already taking 10% of the top for property management retainment.  Would you shave an additional 25% off for the usuals...vacancy, maintenance, taxes, the unexpected?  

Also, our properties are in PA and being that this is our first year of investing, we haven't had the opportunity to yet use a CPA, but will do so for this tax year.  Do you know what the income tax on rentals is?  Yes, I will do my own research, but looking for quick, experienced insight as well.

Thanks a million (at least that's what I'm shooting for!)