I also saw your post on one of the local Buffalo facebook forums, and will caution you that you are going to get a WIDE variety of feedback from a WIDE variety of investors -- especially on that group! 

We currently accept rent from tenants using a variety of 3rd party apps-Cashapp, Venmo, Zelle but are moving away from accepting payments in our individual names and want to start accepting payments directly to the LLC/business accounts, but LLC accounts do not accept Zelle and there is a fee for using business accounts on Venmo.

Like @Matthew Paul we have a variety of vendors and are always looking for more relationships. 

You have provided a variety of situations where doing a cost segregation study would be useful.  

I'm new to real estate investing in general but excited to learn about all the complexities, intricacies, and varieties. 

In general it is not worth building a single ADU for a variety of issues but the largest is the cost to add the ADU is typically far greater than the value added by the ADU.  

Repurpose the money into a variety of different options.

Acid washing when required is $500.

Over time, I hope to try a variety of strategies to see what works best for me as I grow. 

We have internal funds, our passive note platform, lines of credit along with over 10 institutional capital investors that allow us to provide a variety of loan programs to fit the needs of residential investors from wholesalers to flippers to BRRRR or turnkey investors to land and residential developers.Kevin HillCEO - Aloha Capital