Finally, reputation is important.

Does anyone have any recommendations on reputable companies and/or a reference?

You could contact them and they might be better able to represent you a a buyer's agent, or refer you to other good reputable agents in the area. 

However, it’s important to research crowdfunding platforms and investments carefully to ensure they are reputable and have a track record of success.Land Development StrategyInvesting in land development involves purchasing raw land and developing it into residential or commercial properties.

Modular homes can indeed come with garages, either pre-designed or as an add-on, depending on the company you choose and your specific design plan.Companies and QualityThere are numerous reputable companies that produce modular and manufactured homes  Examples, 1) Blu Homes, 2) Clever Homes, 3) US Modular Inc..

All complimented with Amazon fulfillment centers, google, and more tech manufacturing jobs.The bad reputation of “Detroit” comes from OOS investors wanting sub $40,000, D class properties in poor condition, because they pencil out to 2-3% deals on paper.

Direct with seller (Through their own marketing)  they typically have more control of the seller and also more often have a reputable title company the usually work with . ..   

Being consistent, ethical, and providing value will help you build a reputation in the industry that can lead to more opportunities. 

Seeking recommendations for reputable agencies, and I'm curious to explore options beyond Glass Casa Inc.

. :-) I found the realtor from BiggerPockets, and he seems to have a solid reputation.