If you are consistent with your mail you will find a lot of success in this.

Any good companies that provide legit loan leads?

The rehab consisted of ripping out the old carpet and refurbishing the original hardwood floor, put in new window sills, removed old paneling in 2 rooms, sheet rocked, mud, and painted almost the entire interior of the house.

Worth area because consistent job growth coupled with a diversity of industries providing those jobs make it a strong rental market. 

I told them it's their responsibility to make sure all the issues are addressed with the electrician before he leaves to prevent consistent visits over the same problems and to follow up with him if he didn't make the visit.They proceeded to get mad at me and my electrician, saying that it's not professional for the repairmen to forget what he needs to fix, that I'm blaming them, etc.

When carrying out a direct mail campaign you need to remember to be patient and consistent.

Property is approximately 3 acres (2 lots combined) in a small decent neighborhood consisting of 130k-175k dollar homes.

Have you raised rents on them consistently?

Some are even on 10 year.I recognize that if I purchase on a 30 year not I can make extra payments, but I find that the reality is I don't consistently make extra payments. 

Where else could I invest with low money down (that would yield consistent rent profit - or wholesale)  or what are my options?