Their process typically consists of using a drylock type paint to cover the mold to kill/prevent it from spreading and they use a portable ventilation system to vent out the air containing mold.

Shop around and find out.

But I need to plaster one wall, put a coat of refinish on the nice hard woods and just do general clean up and paint. 

If your guess is the answer I'll be posting tomorrow, you'll win some of my 2022 wall calendars suitable for a man cave, garage, frat house or work shop. 

I feel that someone shopping purely on price, also has a larger propensity to have other issues that may make them a less than ideal tenant.

For example, the tenant could claim the Seller allowed them to paint the walls black or that their security deposit was twice what the Seller claimed or that the refrigerator belongs to them.

I've used cost fund and the note shop here in town.

Renovations consisted of all new paint, flooring throughout the house, trim, lighting/ceiling fans, and fixing many small issues as they came up.

Also is it common to use syndication to purchase different types of commercial properties like shopping centers and office centers?

The "rehab" can be as simple as paint or flooring, then rerent it at $1300 or higher.