Reduce number of if statements on python

I have a txt file to parse that looks like:

--- What kind of submission is this? ---\n Sold Property\n --- State? ---\n Los Angeles\n ...

and need to store values after --- --- tags in variables. It works with all those if statements, but I was wondering whether it is possible to refactor a huge number of ifs into some structure (e. g. dictionary), and then easily write that to output file.

Here's something I made:

    """Open a file to read"""
            for line in res:
                if "Instagram Usernames" in line:
                    usernames = next(res)
                if "Date" in line:
                    date = next(res)
                if "Address" in line:
                    address = next(res)
                if "Neighborhood" in line:
                    market = next(res)
                if "State" in line:
                    city = next(res)
                if "Asset" in line:
                    as_type = next(res)
                if "Sale Price" in line:
                    price = next(res)
                    if "," in price:
                        price = price.replace(',', '')
                    if "$" in price:
                        price = price.replace('$', '')
                if "Square" in line:
                    sf = next(res)
                    if "," in sf:
                        sf = sf.replace(',', '')
                    if "$" in sf:
                        sf = sf.replace('$', '')
                if "Buyer" in line:
                    buyer = next(res)
                if "Seller" in line:
                    seller = next(res)
                if "Broker" in line:
                    brokers = next(res)
                if "Notes" in line:
                    notes = next(res)

            """Write to output file"""
            fin.write("IMAGE:  @" + usernames)
            fin.write("DATE: " + date)
            fin.write("ADDRESS: " + address)
            fin.write("MARKET: " + market)
            fin.write("CITY: " + city)
            if as_type == "Multi Family" or "Multi Family\n":
                fin.write("ASSET TYPE: Multifamily\n")
            else:
                fin.write("ASSET TYPE: " + as_type)
            fin.write("PRICE: $" + price)
            if sf in bad_symb:
                fin.write("SF: N/A\n")
                fin.write("PPSF: N/A\n")
            else:
                fin.write("SF: " + sf)
                fin.write("PPSF: $" + "{0:.2f}\n".format(float(price) / float(sf)))
            fin.write("BUYER: " + buyer)
            fin.write("SELLER: " + seller)
            fin.write("BROKERS: " + brokers + "\n")
            if notes != "\n":
                fin.write("NOTES: " + notes + "\n")
            fin.write(footer_sale(market, buyer, seller))

Any help would be appreciated, thanks in advance!