Large multi-family buildings have major concerns w/ roofing, exterior masonry, windows, lead paint, egress porches, & general habitability standards.  The City actively reviews large building exterior masonry, & holds building owner accountable for maintaining it.  Given the age of most of these buildings, the masonry always has concerns; concerns that can be quite expensive to correct.  Often, deteriorated masonry coexists w/ deteriorated roofing; leaking roofs are one of the most common causes of damaged masonry.  Given the size of these buildings, the cost of masonry repair & roof replacement can be staggering.  Windows alone can be both a source of excessive energy waste & liability due to lead paint contamination.  Egress porches are often dilapidated & require major renovation, @ substantial cost.  Heating, plumbing, & electrical systems can be outdated, in addition to interior finishes requiring major renovation.  Section 8 buildings have standards that must be met if the building is to maintain its acceptance within those programs.  Large multi-family buildings require detailed analysis of all these major systems so that the building can be reviewed appropriately for its investment potential.