Currently the lot is too small within the current U-TU-B zoning.

Even if the HOA currently allows rentals, it’s worth attending HOA meetings or reviewing their amendment history.

I am currently living in the master bedroom, and renting out the other 3 bedrooms.

I am currently using FCI, Allied and BIFI

Talk to other clients, go look at his current job site and see how clean it is, the quality of work, if the order of operations is making sense so far, etc.PS I'm a GC in the Nashville area and can take on a handful of clients in 2025 if you need me.

Please keep us posted on how it works out when all is wrapped up with the tenant.We recently were looking at a duplex that we wanted to buy, but the current tenants (in both units) had pit bulls.

I currently have 3 rental properties and now want to move on into fix and flip. 

If you live there and are currently renting, then there still is a pathway to house hack say a duplex and better your situation.  

BiggerPockets Pro members get access to all Stessa core (free tier) functionality – plus unlock exclusive access to advanced features, like unlimited portfolios and Schedule of Real Estate Owned (SREO), all at no additional cost.If you use the same email address on your BiggerPockets account, you should not lose any data but there is more included in your current Stessa Pro account than switching over to BiggerPockets Pro. 

If there isn't a meetup currently, you can start your own one.