In February 2020, the tenants in a unit on a lot she lives on vacated per a 60-day notice, after my mom discovered they've been subletting the house to internet strangers without her consent, violating the lease agreement.

Over the past 2 days i have discovered timeline of events that have occurred since I owned the property.  

Everything I talked about in the OP was what I discovered.

If any of your properties are discovered by City officials to be unregistered, you can receive an administrative citation for failure to register; this penalty can cost $100 or more per property.

The primary form of diligence we see on the forums is "what do you think of XYZ sponsor and deal" whereas the common form of diligence in the space by institutional investors, large investment groups, family offices, and sophisticated investors involves following the sponsor for years, underwriting the deals, validating rent comps, background checks on the general partners, and a host of other diligence that materially de-risks the investments.  

Are there any institutions that will accept bitcoin as downpayment for a loan?  

Federal programs will require you to use GC/licensed folks for a lot of the work and they will get reimbursed by the institution that your loan is with; many GCs don't want to wait on the float time of requesting funds and getting them.Depending on the program and rehab/condition of the home, you may not be required to live in the home (think black mold remediation...bank isn't going to put you in a compromised position) however they may have min/max of when you need to move in.

If you discover one that sounds potentially relevant, and you have not explored it - see if you can still get hold of your accountant before 12/31 and ask them.

This ensures enough space for the homes, parking, and any additional amenities while maximizing land use.Project Scale: To reach an institutional-level deal, you'll typically need at least 100 units.

I had discovered then the broken equipment that he claimed was damaged by a thief, yet not stolen and still the lender had not came to conduct his inspection.