DEAR BOB: When I bought my condo, there were only a few renters in my very desirable complex. Today, there are more than 40 percent renters. Several absentee owners own two, three, four, or more units. As a result, it is like an apartment house. The on-site manager is responsible for maintenance, not for controlling the often-rowdy tenants. A neighbor who recently sold her condo told me she had several prospective buyers who could obtain mortgages only at above-market interest rates so they backed out. more...