I budget for that rate of vacancy and work to exceed that rate on average.

People that don't have too much money (yet) and they use the fact that every gadamn clown has heard about "bandit signs", "Doorknocking" and "Driving For Dollars",  as "credibility" that they know what they are talking about because " yeahhh I have heard soo many people say that, and thus it must be true"..Driving for dollars is relatively "free"... so this is very attractive to people that are new, without a budget, that don't know any better.And those gurus are clever mind you.

All new electrical wiring (down to the studs in the kitchen and bathrooms) put it over budget $100,000.

Get rid of debt, build a budget, and save.

That would give you a yearly capex amount and know what to budget each year.

I would tell you to do what your budget can handle and not take on additional loans. 

I have really locked down my personal finances and budgets to start digging myself out.

Recommended replacement of water line to the house -water damage found in part of the ceiling with thermal imaging -windows lower quality old single panel, recommended budget for replacement in near future and quite a few more smaller issues.

Like others haven mentioned things like budget, access to transit, commute times will all be variables. 

Budget for marketing expenses3.