The issue I face is the guest house is fairly small but fine for a single individual.

Unfortunately, I do not have experience in this space; therefore, I hope to get guidance from an experienced NYC developer.  

What has your experience been?

Does anyone have experience and want to discuss puting inexpensive prefab/modular homes (not mobile homes) on vacant lots?

Question - I believe my personal umbrella policy should cover me personally assuming they cannot get me dismissed as an individual.

However, I'm just starting out and looking for some guidance on where to begin my journey.I've done some research online, but I'd love to hear from those with experience in this field.

I would be so grateful to connect with others who have experience with the rental landscape in Japan (whether Kanto, Kansai, Fukuoka, Sapporo, or elsewhere!). 

FHA are intended for individual borrowers.

I’m sure there’s people on this forum that have experience with buying in the pocono area or surrounding areas, and would love their insight or knowledge of what they think the best way to go about this is.

Also, depending on your experience (which it sounds like you have some, I'm not suggesting that you don't) a PM can be a valuable tool to learn REI and the city.