Credit cards have the same limitation on the amount you can borrow and will likely end up costing more than private lenders.

Lending capacity should only matter to those with large borrowing needs and require large legal lending limits but that wouldn't apply to hard money lenders anyway.

Now I'm not gonna be Mr Tour-guide for any/all who want to stop out and just look around but if you go through the steps and are serious, we have built out acquisition strategy HECK-YEAH I'm gonna say come-on-out and we'd carve out some time to do market tours together AND I'd equip you to do some self study/exploration. 

I would study the listings from the top performing rentals in your area to see how they are overcoming any challenges with location.

The limit on scaling is your deal flow (mine never was that good) and time it takes to perform the value add (I got fairly quick for example, my last rehab did all new plumbing, electrical, and flooring.  

The condo will limit the rental options to age restrictions. 

If you’re placing a new property into service, you can discuss cost segregation studies.

If so, is there any red flags such as rental restrictions, limitations, etc.

3) Any specific states you recommend to set up any of these (Not sure where I'll be purchasing property yet, maybe Detroit, maybe Cleavland, maybe Augusta, maybe Des Moines, maybe Saint Cloud, maybe Memphis...)4) I already have a LLC based in Hong Kong (We call them limited companies, but the principle is the same).

Tangible personal property identified in a cost segregation study is what allows you to accelerate depreciation.