you can buy the property in US. You have to wire the funds to the US bank.
You will have to pay transfer taxes and title charges with recording fees.
These are standard fees for all the US buyers.
You would have to maintain the house, pay RE Taxes and utility bills.
I can help you to buy in Phila and Suburbs. Feel free to contact me.
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From the purchasing stand point there are no restriction for purchasing residential property and the US government encourages foreign investments. However, on the selling side, FIRPTA regulation require a percentage of the sale price of the home be withheld until all debt/liens associated with the property have been cleared.