Regarding renting your existing home, you have to look at it as a business.

You'll likely pay high premiums, face lots of claim denials due to "pre-existing conditions", and deal with service delays.

Fundamentals change neighborhood to neighborhood (i.e. appreciation potential), inventory/absorption issues may exist, rogue city council members and/or registered community organizations can make neighborhoods less appealing with little oversight which impacts value and marketability.

COLLUDE With Judges like KAREN PHIPPS to case FIX court case outcomes so the public doesn't know their fraud scams that include insurance faked claims with frivolous incident dates of known pre existing conditions putting tenants lives at risk SEE CASE COLUMBUS OHIO FRANKLIN COUNTY COURT OF COMMON PLEAS 22CV003620 AND OHIO SUPREME COURT WRITS : 2024 1311,1314,1315,1319,1320,1339,1360,1362,1378,1400,1420,1448,1471,1474,1502,1588,1601See FRANKLIN COUNTY MUNICIPAL COURT cases 2021 EVH 060439 AND 2021 CVG 020711 FAKE AND UNLAWFUL LANDLORD RETALIATION EVICTION BY ALL COUNTY NEO'S  ATTY WHO IS THEIR CLIENT🙄THEY ARE ALL CORRUPT and fraudingI would be careful about labeling an attorney as a fraud on a public forum.

How can you find out if an existing mortgage is assumable?

Half assed truths exists forever on the internet. 

•Peace of Mind: Robust legal protections provide peace of mind, allowing property owners to focus on effective property management.Understanding Squatters Rights in FloridaUnderstanding squatters rights in Florida is crucial for property owners.

And yes, you can buy existing stuff at a discount from new construction for sure. 

I do not have a lender right now, and I will need the 12-month rent history as well as various metrics on the property such as insurance quote (which needs property information in order to obtain), existing debt, and purchase price (which would be established while making offers).

The comps that do exist seem to be performing at a high-levelMarket Overvaluation?