So I believe I know the answer, and I am going back to a few books to read more on each to make sure my situation fits.. but this will be my first partnership and I realize I lack the experience and maybe knowledge to make this decision.Background:I am working on making my first investment purchase!

One suggestion you might consider,Landscape designer.More curb appeal from colors and professional balance I think would fit well into your overall business/marketing plan.Keep it up. 

Later, once we have a relationship, they understand what a wholesaler actually is, and they have no problem with the term.I have several realtors (the smart ones) who reach out about once a week to let me know what their buyers are looking for and asking if I have anything that fits.

"Hi - I'm reaching out to you because you <insert metric // "fit the profile"> and I have an opportunity you may be interested in." and include a few details with directions to more online.) and giving contact info?

In many European countries (not sure about Holland) you will find the house will be bare on moving in so you will need to buy stoves, curtain rails, carpets, light fittings...you name it.

I have looked at meetups.com and there are some real estate meetup but the times doen't fit my current schedule.

Try out the different groups and find the one or multiple ones that fit what you want. 

I tend to look at things like that monetarily and if that fit one of your goals.  

There are very few properties that fit into this niche that don't have significant defects (flood zone, train/highway adjacent, built in 1800s, etc.).We too are moving into new builds of SFR with the purpose of rental & long-term hold/management.

It's a great fit.