New kitchen and bathroom. 3/1. $1375. 

And they are all 3 bedroom 1 bathroom apartments.

I spend $150K remodeling a beautiful home which included foundation repair, new ac's, bathrooms, kitchen, flooring etc...

If not, I always like to be prepared with "bucket costs"  ie) a mid-level kitchen reno (15k-20k), bathroom rehab (10k), basic pricing for floors based on sq foot, etc.

I essentially want to have a W2 job more as a hobby and rely on my rental income to reach financially freedom.

I remodeled the kitchen & bathrooms.

If you only have 1 bathroom in each unit my opinion is that gets tricky. 

I need a color for my walls, living room, bedroom and bathroom.

If he is hiring you to find him jobs, you would essentially be marketing for him and getting paid based on what deal structure you work out. e.g. percentage of the job amount, fixed finders fee, etc.If you are starting your own contracting business, you would need to defer to TX small business laws.

Is it O.K. liability wise, to have a handyman:Replace a bathroom light fixture.Replace a ceiling fan.Replace a switch.Replace an outlet.Replace a standard screw in lightbulb.Repair a loose outlet box.