.- Is there a kind of person who could help me with pre-sale improvements (roughly saying, to tell me what is worth replacing, improving, etc and what is not,1 to make the house more attractive for the buyer)?

Reminder:Ground improvements qualify for bonus depreciation.This includes various landscaping.Roads and external parking areas.Sidewalks and pathways.Fences.Utility systems (including the installation or improvements to water, sewage, drainage, and electrical systems).Outdoor lighting.Rec facilities (like playgrounds, sports courts, and swimming pools).And more.It's a big category for depreciation/bonus depreciation that we love.

You can also write it off as a business expense and there could be additional tax benefits for energy efficient home improvements.  

With strategic upgrades, we modernized the property, improving its value significantly.

Yes, they do come at a slightly higher purchase price/downpayment than C class rentals, but I’ve found it to be worth it because of the improved tenant quality. 

Ensure the appraiser accounted for things like the square footage, recent improvements, location benefits, or other factors that impact value.

Portfolio lenders or credit unions may offer flexible refinancing options, while creative financing can improve cash flow.

Over the past few years, my wife and I have worked hard to improve our financial health—we’ve raised our credit scores above 800, paid off all debt except for our mortgage and student loans, and saved a fair amount.

Who makes decisions on improvements?

., land) from the depreciable building and site improvements.