You will notice that there are frequent posters who respond to topics with these keywords.

Also, there is a good event company called Biznow that does local Q&A with industry leaders on a frequent basis.

How frequent are investment meetups in the area?

I will start updating more frequently here as now I can work on a new list. 

*Check the HVAC system and vacuum out electric heaters.

I took an A/C course at the junior college, taught by the HVAC guy who was a sponsor of, and frequent guest on, the local home handy man radio show.

Social media product rules and engagement can change frequently leaving you at the mercy of the tech.

Forms of this debate frequently re-occur around these forums. 

This formula is used most frequently in a commercial property (5+ units) because often times the loan is a non-recourse loan ($1mm+) so the lender has to rely on the property to support itself since the lender can't look at the borrower as a qualifyer.However, if you are talking about SFR or a 1-4 unit property, you can obtain a conventional loan. 

If so, you can count on your "economic vacancy" being a lot higher than what you are projecting due to non-paying tenants, plus higher and more frequent turnover costs.We would really need more information that what you provided.