Normally it's fairly accurate but I always like to cross check using the MLS. https://www.bethesdapropertymanagementinc.com/

If they do, it is normally minimal. 

Normally I would recommend brokers over banks but there are often small local banks who love local commercial property and will be happy to lend. 

remember, agents go be bother listing and buyers agents here That's how it normally works, but the OP said "They are also not allowed to see other properties unless it is the same real estate agent listings." which seems very odd.

If the rental income significantly exceeds the normal write-offs (standard expenses plus standard depreciation) then there are options including extracting value via a refinance (reduces the cash flow), do a brrrr or other costly value add, or do cost segregation.  

@Todd Powell Normally 1031 exchange happens for the same company.

Keep in mind the rental limitations condos can have, they normally have a limit on how many rentals in a complex. 

If you're difficult to deal with or require extra handling (i.e. pays each month's rent in 2 or 3 payments) there's a $250 upcharge on what the rent increase would be normally.

Is that also normal? 

Some people love them and actively seek them out while others don't care and would spend money to convert it back to normal.