I am a regular listener to the Bigger Pockets podcasts when I am doing chores around my house and my STR property. 

Voucher tenants often stay longer and pay more consistently than many regular tenants.

It also regularly puts out deals at that are typically low 65% LTV, high 10%+ skin in the game/co-investment etc.They market under 506B so are prohibited from posting publicly on the Internet and instead function by referrals.

Always looking to learn from people who see this stuff regularly.

On the other hand maybe they’re just regular scammers not BP specific ones.  

.– Foundation/moisture: Older homes sometimes don’t have proper drainage.

Start analyzing deals regularly, even if you’re not ready to buy yet. 

Sounds like you don't need renovations but there should be some type of regular presence.3.

Do the inspection, communicate with the tenants, treat the unit and monitor regularly!

But the B class duplex properties in my area (Springfield MO) are priced so they don't cash flow before they're paid off. in other words I have to cover $300-600/month for about 5 years (on a $250K+ properties).The reason I can pay off in 5 years is I have ability to pay large amounts against principal every month (from my regular job income), but I only have 82K for a down payment.Once it's paid off, the property would produce almost 1000$ net cash flow.Are these good numbers or do I need to do things differently?