Well, saving a buck here and there can usually work....

A little bit more context, I have a 6.5% interest mortgage that I have been prepaying overtime with extra cashflow from my rental.

Personally, I like the lower monthly payment with a 30 and then have extra expendable cash flow on top.  

Not to say we'll have that identically, but usually before something bursts there's a heavy run up. 

I love working with buyer agents because they usually already have a built relationship with their buyer investors.

@Jeff Anderson just set up a virtual mailbox and get some services that are worth your extra cost ($100/yr).

So if that's your goal and are ok with the added wear and risk, then it's fine, just charge more for the extra costs you will incur.I've always taken the other approach, which is more sensible IMO.

I usually would put the appointments 15 minutes apart, and do a few at once unless I get a very good feeling about an applicant. 

Even if it does split the weekend, it usually fills in eventually, at least with my listing. 

Plus, usually no payments are coming in during that time, the tenant(s) may need to be evicted, the property usually sits vacant and comes back in worse condition.