On June 24th 2021 Erika purchased a duplex with the intent of renting both units the seller Emmanuel have fallen behind on payments so Erica paid Emmanuel 50,000 in cash and assume the $225,000 mortgage the assessed value of the property is $245,000 with 35,000 of that for the land Erica's other sale expenses are:

2,200 mortgage interest

1750 real estate tax owed by emanuel

300 legal fees

500 loan assumption fee

What is Erikas basis in the duplex?