If you look what ADUs have done for California, it seems like this can be a transformative trend here in MA. 

You will need to look at CA building code.

From adding bi-fold doors to creating outdoor kitchens, we design spaces that make the most of Southern California’s weather.These trends not only elevate the homes we renovate but also ensure they stand out in the market. 

In California there is $800 franchise tax per LLC per year, which discourages a lot of RE investors from getting an LLC.

I had two different companies.. one in Oakland CA circa 88 to 92 all investors all private and all 100% of funds for loans put up from the investors. 

Quote from @Hector Romero: Hello all, I am new to the community as well as being the lead in real estate investments.My sister and I currently hold 3 properties next to each other in Riverside County, California (we'd like to get them in an LLC but we're unsure how that may affect financing them).

Currently live in California. 

In CA I took a crash course with Sharon Butler and I passed first try with an 86%.

Since you’re in CA go for appreciation vs Cashflow .  

I live in California (Central Coast) and have built a 12-door portfolio in Detroit, which has been a great market for both cash flow and long-term potential.Detroit still offers properties well below the $150k mark, with strong rent-to-price ratios and a market that’s seeing growth in key areas.