(ex. plumbing, a leaky roof, noisy neighbour).

For one, your appraisals use an entirely different method which can definitely be in your favor.

You just have to keep trying different methods.

My dad is a self-employed owner of a plumbing company that has been around for 12 years, he is a 50% owner with his partner being the other, and they are an LLC that is registered as an S-Corp.I have been working with a lender for the past 2 months, and between a lot of back and forths, we were finally able to figure out how to work in enough deductions back into his income in order to get his income underneath the required 50% DTI in order to qualify.

I've only had to put in about $1,500 in some plumbing, water heater, and HVAC maintenance issues and I gained a tenant paying $750/month with very little effort.

I've only had to put in about $1,500 in some plumbing, water heater, and HVAC maintenance issues and I gained a tenant paying $750/month with very little effort.Lessons learned?

Is there anyone who has been heavily involved in this type of investing or has the strategic process in place to utilize this method of investing? 

Building is old with old plumbing and updates needed.

This rehab portion was for some big ticket items; siding, plumbing, electrical, flooring, some walls, etc.

I was three years into starting my own plumbing business, and had one rental house.